EyouCMS FilemanagerLogic.php editFile path traversal

A vulnerability was found in EyouCMS 1.51. It has been rated as critical. This issue affects the function editFile of the file application/admin/logic/FilemanagerLogic.php. The manipulation of the argument activepath leads to path traversal. The attack may be initiated 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.