Cross-site scripting (XSS) vulnerability in register.php in TheWebForum (twf) 1.2.1 allows remote attackers to inject arbitrary web script or HTML via the www parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/24007
http://www.vupen.com/english/advisories/2006/0093
http://www.securityfocus.com/archive/1/421039/100/0/threaded