tgstation-server's DreamMaker environment files outside the deployment directory can be compiled and ran by insufficiently permissioned users
What kind of vulnerability is it? Who is impacted? Low permission users using the "Set .dme Path" privilege could potentially set malicious .dme files existing on the host machine to be compiled and executed. These .dme files could be uploaded via tgstation-server (requiring a separate, isolated privilege) or some other means. A server configured to execute in BYOND's trusted security level (requiring a third separate, isolated privilege OR being set …