source: https://www.securityfocus.com/bid/52079/info

Tiki Wiki CMS Groupware is prone to a URI-redirection vulnerability because the application fails to properly sanitize user-supplied input.

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

http://www.example.com/tiki-featured_link.php?type=f&url=http://www.example2.com