MuFen-mker PHP-Usermm vulnerabilities

A vulnerability was detected in MuFen-mker PHP-Usermm up to 37f2d24e51b04346dfc565b93fc2fc6b37bdaea9. This affects an unknown part of the file /chkuser.php. Performing manipulation of the argument Username results in sql injection. The attack may be initiated remotely. The exploit is now public and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The vendor was contacted early about this disclosure but did not respond in any way.