PHPAuctions (aka PHPAuctionSystem) allows remote attackers to bypass authentication and gain administrative access via modified (1) PHPAUCTION_RM_ID, (2) PHPAUCTION_RM_NAME, (3) PHPAUCTION_RM_USERNAME, and (4) PHPAUCTION_RM_EMAIL cookies.Referenceshttp://www.securityfocus.com/bid/33120http://securityreason.com/securityalert/4891http://osvdb.org/51146https://www.exploit-db.com/exploits/7674http://secunia.com/advisories/33331