serious mount problem

Hello: I have Trinity R14.0.4 on openSUSE Leap 42.2. The desktop has a "My Computer" icon which is a shortcut to media:/. It opens a window that shows a lot of (all?) hard disk volumes/partitions. The problem: Normal user can mount any of these partititions. This is a SERIOUS security flaw. Normal user should not be able to mount internal disk partitions unless the partition is explicitely set so in /etc/fstab using "user" or "users" options. This behavior can lead to unintentional disruption of raid arrays and enable normal users to modify other users' files in other OSs on other partitions. It is also very strange that a user running mount command can not mount those partitions while the desktop system makes it possible. How can this behavior be changed so that normal could not mount other partitions? I would like to report this as a bug, how can I? Thanks, Istvan