Cross-site scripting (XSS) vulnerability in Invision Power IP.Board (aka IPB or Power Board) 3.4.x through 3.4.6 allows remote attackers to inject arbitrary web script or HTML via the HTTP Referer header to admin/install/index.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/94693
http://www.securityfocus.com/bid/68705
http://www.securityfocus.com/archive/1/532822/100/0/threaded