PHP remote file inclusion vulnerability in index.php in WEBInsta CMS 0.3.1 and possibly earlier allows remote attackers to execute arbitrary PHP code via a URL in the templates_dir parameter.
https://www.exploit-db.com/exploits/2175
https://exchange.xforce.ibmcloud.com/vulnerabilities/28371
http://www.vupen.com/english/advisories/2006/3276
http://www.securityfocus.com/archive/1/445083/100/0/threaded
http://www.securityfocus.com/archive/1/443154/100/0/threaded
http://securityreason.com/securityalert/1400