Anchor CMS through 0.12.7 Privilege Escalation via Missing Authorization on Admin User-Management Endpoints
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.
CVE-2026-88959
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-88959
Anchor CMS
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/anchorcms/anchor-cms",
"vendor": "anchorcms",
"product": "Anchor CMS",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "custom",
"lessThanOrEqual": "0.12.7"
}
],
"packageURL": "pkg:composer/anchorcms/anchor-cms",
"packageName": "anchorcms/anchor-cms",
"collectionURL": "https://packagist.org",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-88959
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1612 · Revision 1
- Added to Heist Feed
- Publisher date