PHP remote file inclusion vulnerability in VBulletin 3.5.1, 3.5.2, and 3.5.4 allows remote attackers to execute arbitrary code via a URL in the systempath parameter to (1) ImpExModule.php, (2) ImpExController.php, and (3) ImpExDisplay.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/34095
https://exchange.xforce.ibmcloud.com/vulnerabilities/25789
http://www.securityfocus.com/archive/1/467666/100/0/threaded
http://www.securityfocus.com/archive/1/430881/100/0/threaded