CVE-2026-88959
Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints
- State
- Published
- Severity
- 8.7 High
- Published
- Sep 10, 2026
- Updated
- Sep 24, 2026
- Reserved
- Sep 10, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.7 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | VulnCheck |
Weaknesses
- CWE-862 Missing Authorization
Affected Products
| Product | Versions |
|---|---|
Anchor CMSanchorcms |
|
References
- Anchor CMS 0.12.7 - Missing Authorization / Privilege Escalationthird-party-advisory
- anchor/routes/users.php at 0.12.7technical-description
- Productproduct
- VulnCheck Advisory: Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpointsthird-party-advisory
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