A vulnerability was found in MuYuCMS up to 2.7. Impacted is an unknown function of the file /index/index.html of the component Add Fiend Link Handler. Performing manipulation of the argument Link URL results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could 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.