Shanghai Lingdang Information Technology Lingdang CRM yunzhijiaApi.php delete_user sql injection

A vulnerability classified as critical was found in Shanghai Lingdang Information Technology Lingdang CRM up to 8.6.4.7. Affected by this vulnerability is the function delete_user of the file crm/WeiXinApp/yunzhijia/yunzhijiaApi.php. The manipulation of the argument function leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 8.6.5.2 is able to address this issue. It is recommended to upgrade the affected component.