CVE-2026-88959
Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints
CVSS Score
8.8
EPSS Score
0.0%
EPSS Percentile
0th
Anchor CMS through 0.12.7 fails to enforce role-based access control in admin user-management endpoints, allowing any authenticated low-privilege user to create administrator accounts or modify existing ones. Attackers with editor or user roles can POST directly to admin/users/add or admin/users/edit endpoints to create new administrator accounts or change the existing administrator's password, gaining full administrative access.
| CWE | CWE-862 |
| Vendor | anchorcms |
| Product | anchor cms |
| Published | Sep 10, 2026 |
| Last Updated | Sep 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
anchorcms / Anchor CMS
0 ≤ 0.12.7
References
gist.github.com: https://gist.github.com/bozorovab2009-spec/57931237f774b78333f8fe47e84ec4aa github.com: https://github.com/anchorcms/anchor-cms/blob/0.12.7/anchor/routes/users.php github.com: https://github.com/anchorcms/anchor-cms vulncheck.com: https://www.vulncheck.com/advisories/anchor-cms-through-0.12.7-privilege-escalation-via-missing-authorization-on-admin-user-management-endpoints
Credits
🔍 Barno Bozorova