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TI-2026-60305 Aliases CVE-2026-88959GHSA-gpm9-mh97-xhwr

Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints

Priority MEDIUM 40CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00523 44th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
anchorcmsAnchor CMSup to 0.12.7—No fix listedCNA
  • Anchor CMS Vendoranchorcms Affected up to 0.12.7 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-88959
  2. 2026-10-03 Alias added: GHSA-gpm9-mh97-xhwr

References

Advisory 1

Other 2

  • TI-2018-05260 An issue was discovered in config/error.php in Anchor 0.12.3. CVSS 3.0CRITICAL 9.8
  • TI-2024-25129 Cross Site Scripting vulnerability in Anchor CMS v.0.12.7 allows a remote attacker to… CVSS 3.1HIGH 8.8
  • TI-2024-19470 Anchor CMS v0.12.7 was discovered to contain a Cross-Site Request Forgery (CSRF) via /anchor/admin/users/delete/2. CVSS 3.1HIGH 7.4
  • TI-2025-28918 A stored cross-site scripting (XSS) vulnerability in Anchor CMS v0.12.7 allows attackers… CVSS 3.1MEDIUM 5.4
  • TI-2020-14539 A CSRF vulnerability exists in Anchor CMS 0.12.7 anchor/views/users/edit.php that can change the Delete admin users. CVSS 3.1HIGH 8.8
  • TI-2024-19430 Anchor CMS v0.12.7 was discovered to contain a Cross-Site Request Forgery (CSRF) via /anchor/admin/categories/delete/2. CVSS 3.1LOW 2.4
See all 13 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences