cjbi wetech-cms Database Backup BackupFileUtil.java backup path traversal

A vulnerability was found in cjbi wetech-cms 1.0/1.1/1.2. It has been rated as problematic. Affected by this issue is the function backup of the file wetech-cms-master\wetech-basic-common\src\main\java\tech\wetech\basic\util\BackupFileUtil.java of the component Database Backup Handler. The manipulation of the argument name leads to path traversal: '../filedir'. 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.