Non-privileged backend users with file mount access were able to perform write operations (move, delete, rename) on folders representing the root of an active file mount due to missing authorization restrictions. This issue affects TYPO3 CMS versions before 10.4.57, 11.0.0 through 11.5.50, 12.0.0 through 12.4.45, 13.0.0 through 13.4.30, and 14.0.0 through 14.3.2.