source: https://www.securityfocus.com/bid/14930/info

PHPMyFAQ is prone to an unauthorized access vulnerability. A remote attacker can exploit this vulnerability to view the application log file.

This vulnerability could lead to the disclosure of various valid usernames, which could aid in brute force attacks; information obtained may aid an attacker in further attacks. 

The following proof of concept is available where [date] is the date of a log file entry:
http://www.example.com/phpmyfaq/data/tracking[date]