Allons_voter 1.0 allows remote attackers to bypass authentication and access certain administrative functionality via a direct request for (1) admin_ajouter.php or (2) admin_supprimer.php. NOTE: this could be leveraged to conduct cross-site scripting (XSS) attacks.
https://exchange.xforce.ibmcloud.com/vulnerabilities/32431
http://www.securityfocus.com/bid/22508
http://www.securityfocus.com/archive/1/459652/100/0/threaded