dingfanzu CMS checkin.php sql injection

A vulnerability was found in dingfanzu CMS up to 29d67d9044f6f93378e6eb6ff92272217ff7225c. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /ajax/checkin.php. The manipulation of the argument username leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.