Tosei Online Store Management System ネット店舗管理システム Backend default credentials

A vulnerability classified as critical was found in Tosei Online Store Management System ネット店舗管理システム 4.02/4.03/4.04. This vulnerability affects unknown code of the component Backend. The manipulation leads to use of default credentials. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.