Tencent Blueking CMDB v3.2.x to v3.9.x was discovered to contain a Server-Side Request Forgery (SSRF) via the event subscription function (/service/subscription.go). This vulnerability allows attackers to access internal requests via a crafted POST request.
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.