source: http://www.securityfocus.com/bid/20962/info

phpMyChat is prone to a local file-include vulnerability because it fails to properly sanitize user-supplied input.

Exploiting this issue may allow an unauthorized user to view files and execute local scripts.

phpMyChat 0.15.0 and prior versions are vulnerable to this issue; other versions may also be affected.

http://www.example.com/path/localization/languages.lib.php3?ChatPath=../../etc/passwd