Born2Hack

**Name of the Vulnerable Software and Affected Versions** Nextcloud Server versions prior to 14.0.0 Nextcloud Server versions prior to 13.0.6 Nextcloud Server versions prior to 12.0.11 **Description** The issue is related to improper revalidation of permissions, which leads to access tokens not accepting access restrictions. **Recommendations** For versions prior to 14.0.0, update to version 14.0.0 or later. For versions prior to 13.0.6, update to version 13.0.6 or later. For versions prior to 12.0.11, update to version 12.0.11 or later.