A vulnerability was found in zhangyanbo2007 youkefu 4.2.0. It has been classified as critical. Affected is an unknown function of the file /res/url. The manipulation of the argument url leads to server-side request forgery. It is possible to launch the attack remotely. The exploit has been disclosed to the 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.