WuzhiCMS Setting index.php set code injection

A vulnerability was found in WuzhiCMS 4.1. It has been rated as critical. Affected by this issue is the function Set of the file /index.php?m=attachment&f=index&_su=wuzhicms&v=set&submit=1 of the component Setting Handler. The manipulation of the argument Setting leads to code injection. The attack may be launched 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.