source: https://www.securityfocus.com/bid/7570/info A cross site scripting vulnerability has been reported for PHP-Nuke. Specifically, PHP-Nuke does not sufficiently sanitize user-supplied input for the 'username' URI parameter to the modules.php script. This may allow for theft of cookie-based authentication credentials and other attacks. http://[victim]/modules.php?name=Your_Account&op=userinfo& username=bla