EUVD-2026-19458CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Description
Brave CMS is an open-source CMS. Prior to 2.0.6, this vulnerability is a missing authorization check found in the update role endpoint at routes/web.php. The POST route for /rights/update-role/{id} lacks the checkUserPermissions:assign-user-roles middleware. This allows any authenticated user to change account roles and promote themselves to Super Admin. This vulnerability is fixed in 2.0.6.
Analysis
Privilege escalation in Brave CMS 2.0.x before 2.0.6 allows authenticated users with low-privilege accounts to promote themselves to Super Admin by directly calling the unprotected role update endpoint. The vulnerability stems from a missing authorization middleware check on the /rights/update-role/{id} route, enabling complete takeover of the CMS by any user with valid credentials. …
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Remediation
Within 24 hours: Identify all Brave CMS instances running versions 2.0.0 through 2.0.5 and document affected systems. Within 7 days: Upgrade to Brave CMS 2.0.6 or later where the authorization middleware check has been implemented on the /rights/update-role/{id} endpoint. …
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