SQL injection vulnerability in register/ in Subrion CMS before 2.2.3 allows remote attackers to execute arbitrary SQL commands via the plan_id parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/79466
http://www.subrion.com/forums/announcements/934-subrion-2-2-3-open-source-cms-core-available.html
http://secunia.com/advisories/51013
http://packetstormsecurity.org/files/117460/Subrion-CMS-2.2.1-XSS-CSRF-SQL-Injection.html