Cross-site scripting (XSS) vulnerability in login.php in Game-Panel 2.6.1 and earlier allows remote attackers to inject arbitrary web script or HTML via the message parameter, possibly requiring a URL encoded value.
https://exchange.xforce.ibmcloud.com/vulnerabilities/25144
http://www.vupen.com/english/advisories/2006/0864
http://www.securityfocus.com/archive/1/426825/100/0/threaded