TOZED ZLT M30S/ZLT M30S PRO Web hard-coded credentials

A vulnerability has been found in TOZED ZLT M30S and ZLT M30S PRO 1.47/3.09.06. Affected is an unknown function of the component Web Interface. Such manipulation leads to hard-coded credentials. The attack needs to be initiated within the local network. 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.