SQL injection vulnerability in the new user registration feature in BigACE CMS 2.5, when magic_quotes_gpc is disabled, allows remote attackers to execute arbitrary SQL commands via the username parameter.
https://www.exploit-db.com/exploits/8664
http://www.securityfocus.com/archive/1/503448/100/0/threaded
http://www.bigace.de/Security-Fix-for-2.5.html