CVE Catalog

CVE-2026-41128

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.25%

16th percentile - higher than 16% of all known CVEs

Summary

Craft CMS is a content management system. In versions 5.6.0 through 5.9.14, the actionSavePermissions() endpoint allows a user with only viewUsers permission to remove arbitrary users from all user groups. While _saveUserGroups() enforces per-group authorization for additions, it performs no equivalent check for removals, so submitting an empty groups value removes all existing group memberships. Version 5.9.15 contains a patch.

Risk Assessment

A user with limited permissions could unauthorizedly modify group memberships, potentially leading to privilege escalation or access control disruption.

Recommendation

Update Craft CMS to version 5.9.15 or later.

Other vulnerabilities in Craft CMS

See all
Original NVD description (English source)

Craft CMS is a content management system (CMS). In versions 5.6.0 through 5.9.14, the `actionSavePermissions()` endpoint allows a user with only `viewUsers` permission to remove arbitrary users from all user groups. While `_saveUserGroups()` enforces per-group authorization for additions, it performs no equivalent authorization check for removals, so submitting an empty `groups` value removes all existing group memberships. Version 5.9.15 contains a patch.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS