Cross-site scripting (XSS) vulnerability in index.php in Cerberus Helpdesk allows remote attackers to inject arbitrary web script or HTML via the kb_ask parameter.
https://exchange.xforce.ibmcloud.com/vulnerabilities/23834
https://euvd.enisa.europa.eu/vulnerability/EUVD-2005-4423
http://www.securityfocus.com/bid/16062
http://www.securityfocus.com/archive/1/420271/100/0/threaded