CVE-2026-88959CWE-862broken-access-control

CVE-2026-88959

High · published September 10, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
43.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00523 · 43.5th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-09-10T20:18Z
References (4)
https://gist.github.com/bozorovab2009-spec/57931237f774b78333f8fe47e84ec4aa · [email protected]https://github.com/anchorcms/anchor-cms · [email protected]https://github.com/anchorcms/anchor-cms/blob/0.12.7/anchor/routes/users.php · [email protected]https://www.vulncheck.com/advisories/anchor-cms-through-0.12.7-privilege-escalation-via-missing-authorization-on-admin-user-management-endpoints · [email protected]
EPSS history
Timeline
  • 12 SEP 03:22Z
    EPSS moved — → 0%
    epss
  • 10 SEP 15:44Z
    Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints
    cvelistv5