JFinalCMS com.cms.controller.admin.TemplateController update path traversal

A vulnerability, which was classified as problematic, was found in JFinalCMS up to 20240903. This affects the function update of the file /admin/template/update of the component com.cms.controller.admin.TemplateController. The manipulation of the argument fileName leads to path traversal. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used.