source: http://www.securityfocus.com/bid/52076/info
  
Endian Firewall is prone to multiple cross-site scripting vulnerabilities because it fails to sufficiently sanitize user-supplied data.
  
Exploiting these issues could allow an attacker to execute arbitrary script on the affected server and steal cookie-based authentication credentials. Other attacks are also possible.
  
https://www.example.com/cgi-bin/dansguardian.cgi#addrule[XSS]