Mercator is an open source web application that enables mapping of the information system. Prior to version 2025.05.19, Mercator's Query Engine (/admin/queries/execute) accepts a JSON DSL (from / select / filters / traverse / output), translates it into an Eloquent query, and returns results as JSON. The controller method QueryController::execute() does not enforce an authorization gate, unlike store() and massDestroy() in the same controller which are correctly protected. As a result, any authenticated account — including the read-only Auditor role — can query models beyond its intended scope, including the User model. Additionally, the password column, although declared $hidden, is not excluded from filter predicates, which allows it to be used in LIKE conditions. The schema() and…