A vulnerability classified as critical was found in ???????????? Lingdang CRM up to 8.6.4.3. Affected by this vulnerability is an unknown functionality of the file /crm/WeiXinApp/marketing/index.php?module=Users&action=getActionList. The manipulation of the argument userid 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.