GHSA-Q4RM-M6XH-5PV7 Froxlor customer can create MySQL databases on disallowed servers via Mysqls.add API

Summary The Mysqls.add API command lib/Froxlor/Api/Commands/Mysqls.php accepts a customer-controlled mysqlserver parameter and only validates that the value is numeric and that the server index exists in userdata.inc.php. It never checks the value against the calling customer's allowedmysqlserver...