A vulnerability was detected in ZKEACMS 4.3. Impacted is the function Proxy of the file src/ZKEACMS/Controllers/MediaController.cs. Performing manipulation of the argument url results in server-side request forgery. It is possible to initiate the attack remotely. The exploit is now public and may be used.
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.