A vulnerability was found in Metasoft 美特软件 MetaCRM up to 6.4.2. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file mcc_login.jsp. The manipulation of the argument workerid leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.