A vulnerability classified as critical has been 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 affects an unknown part of the file /cgi-bin/tosei_kikai.php. The manipulation of the argument kikaibangou leads to command injection. It is possible to initiate the attack 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.