Cross-site request forgery (CSRF) vulnerability in admin.php in Francisco Burzi PHP-Nuke allows remote attackers to add administrative accounts via an AddAuthor action with modified add_name and add_radminsuper parameters.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-5013
http://www.securityfocus.com/archive/1/480107/100/0/threaded