A vulnerability has been discovered in PHP-Nuke, which can be exploited by malicious people to conduct cross-site scripting or cross-site request forgery attacks.

The vulnerability is caused due to an error within the anti-cross-site request forgery routine. This can be exploited to bypass the routine and e.g. execute arbitrary HTML and script code in a user's browser session in context of an affected site by passing malicious input to the search function of the downloads module.

Successful exploitation requires that "register_globals" is disabled.

The vulnerability is confirmed in version 7.9 and reported in version 8. Other versions may also be affected.

Solution
Edit the source code to ensure that input is properly verified.

Provided and/or discovered by
Francesco `ascii` Ongaro and Stefano `wisec` di Paola

Original Advisory
http://www.ush.it/2007/03/09/php-nuke-wild-post-xss/

Deep Links
Links available to Secunia VIM customers