Concrete CMS versions 9.0.0 through 9.5.2 contain an Insecure Direct Object Reference (IDOR) vulnerability in the Express saved search preset delete and edit dialogs. Authenticated users with view permission on a single Express entity can delete or rename saved search presets belonging to other Express entities without proper authorization. Renamed presets are displayed to users of the targeted entity, potentially enabling defacement or social engineering. The vulnerability has a low severity rating with a CVSS v4.0 score of 2.1.