A vulnerability, which was classified as critical, was found in Xuxueli xxl-job up to 3.1.1. Affected is the function httpJobHandler of the file srcmainjavacomxxljobexecutorservicejobhandlerSampleXxlJob.java. The manipulation 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.