source: https://www.securityfocus.com/bid/16731/info

Time Tracking Software is prone to an access-validation vulnerability. This issue is due the application's failure to limit access to administrative sections of the application. 

An attacker can exploit this vulnerability to modify user data in the context of the application. This may result in a loss of confidentiality. The attacker may use this information in further attacks. 

This issue is reported to affect Time Tracking Software version 3.0; other versions may also be vulnerable.

http://www.example.com/timetracking/edituser.php? num=[userid]