SQL injection vulnerability in index.php in WebStudio CMS allows remote attackers to execute arbitrary SQL commands via the pageid parameter.
https://www.exploit-db.com/exploits/7236
https://www.exploit-db.com/exploits/7216
https://exchange.xforce.ibmcloud.com/vulnerabilities/46818
http://www.vupen.com/english/advisories/2008/3273
http://www.securityfocus.com/archive/1/498597/100/0/threaded