thinkgem JeeSite URI Scheme form ResourceLoader.getResource server-side request forgery

A vulnerability was found in thinkgem JeeSite up to 5.11.1. It has been rated as critical. Affected by this issue is the function ResourceLoader.getResource of the file /cms/fileTemplate/form of the component URI Scheme Handler. The manipulation of the argument Name leads to server-side request forgery. The attack may be launched remotely. The exploit has been disclosed to the public and may be used.