Shanghai Lingdang Information Technology Lingdang CRM event.php sql injection

A vulnerability was determined in Shanghai Lingdang Information Technology Lingdang CRM up to 8.6.5.4. Affected by this issue is some unknown functionality of the file crm/WeiXinApp/yunzhijia/event.php. The manipulation of the argument openid leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 8.6.5 is able to address this issue. It is recommended to upgrade the affected component. The vendor explains: "All SQL injection vectors were patched via parameterized queries and input sanitization in v8.6.5+."