juzaweb CMS Error Logs Page log-viewer access control

A vulnerability classified as critical has been found in juzaweb CMS up to 3.4.2. This affects an unknown part of the file /admin-cp/log-viewer of the component Error Logs Page. The manipulation leads to improper access controls. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.