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+.
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.