Multiple cross-site scripting (XSS) vulnerabilities in ChatPat 1.0 allow remote attackers to inject arbitrary web script or HTML via a chat message in (1) fastchat.php and (2) fastshow.php.
https://exchange.xforce.ibmcloud.com/vulnerabilities/26682
http://www.vupen.com/english/advisories/2006/1986
http://www.securityfocus.com/archive/1/435006/100/0/threaded