Dreamer CMS file access

A vulnerability was found in Dreamer CMS up to 4.1.3. It has been classified as problematic. Affected is an unknown function of the file /upload/ueditorConfig?action=config. The manipulation leads to files or directories accessible. It is possible to launch the attack remotely. The complexity of an attack is rather high. The exploitability is told to be difficult. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-238632. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.