source: https://www.securityfocus.com/bid/56687/info

Forescout CounterACT is prone to an open-redirection vulnerability because the application fails to properly sanitize user-supplied input.

A successful exploit may aid in phishing attacks; other attacks are possible.

Forescout CounterACT 6.3.4.1 is vulnerable; other versions may also be affected. 

http://www.example.com/assets/login?a=http://www.evil.com