source: https://www.securityfocus.com/bid/15237/info PHP Advanced Transfer Manager can allow remote attackers to gain unauthorized access. Access to sensitive files containing authentication credentials is not restricted, therefore an attacker can simply issue a GET request to obtain a user's password hash. This information can then allow them to successfully authenticate to the service using a cookie. PHP Advanced Transfer Manager 1.30 is reported to be vulnerable. Other versions may be affected as well. http://www.example.com/phpATM/users/