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CVE-2026-88959 (GCVE-0-2026-88959)

Vulnerability from cvelistv5 – Published: 2026-09-10 15:44 – Updated: 2026-09-11 20:33 Unsupported When Assigned
VLAI
Title
Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints
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.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 18:26 UTC
CWE
Impacted products
Vendor Product Version CPE status
anchorcms Anchor CMS Affected: 0 , ≤ 0.12.7 (custom)
    cpe:2.3:a:anchorcms:anchor_cms:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-10 00:00
Show details on NVD website

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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