source: https://www.securityfocus.com/bid/60290/info

Telaen is prone to an open-redirection vulnerability.

An attacker can leverage this issue by constructing a crafted URI and enticing a user to follow it. When an unsuspecting victim follows the link, they may be redirected to an attacker-controlled site; this may aid in phishing attacks. Other attacks are possible.

Versions prior to Telaen 1.3.1 are vulnerable. 

http://www.example.com/telaen/redir.php?http://www.malicious-site.com