Cross-site scripting (XSS) vulnerability in LogonProxy.cgi in Cisco Secure ACS for UNIX 2.3 allows remote attackers to inject arbitrary web script or HTML via the (1) error, (2) SSL, and (3) Ok parameters.
https://exchange.xforce.ibmcloud.com/vulnerabilities/27166
http://www.vupen.com/english/advisories/2006/2384
http://www.securityfocus.com/archive/1/437480/100/0/threaded
http://www.securityfocus.com/archive/1/437441/100/0/threaded