Mitsubishi Electric Europe B.V. SmartRTU devices allow remote attackers to obtain sensitive information (directory listing and source code) via a direct request to the /web URI.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-7917
https://drive.google.com/open?id=1QMHwTnBbIqrTkR0NEpnTKssYdi8vRsHH