CVE-2026-88959 Anchor CMS - Broken Access Control

Anchor CMS <= 0.12.7 contains a broken access control vulnerability caused by failure to enforce role-based access control in admin user-management endpoints, letting authenticated low-privilege users create or modify administrator accounts, exploit requires authenticated user with editor or user role.

CVSS base score 8.8 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.52% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Broken Access Control
Impact
Privilege Escalation
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
10 September 2026
Updated
15 October 2026
Weakness
CWE-862

Vendor fix

Update to the latest version beyond 0.12.7.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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