CVE-2026-41128
5.3
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| craftcms | cms | >= 5.6.0, < 5.9.15 | affected |
Weaknesses
- CWE-862: CWE-862: Missing Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/craftcms/cms/security/advisories/GHSA-jq2f-59pj-p3m3
- https://github.com/craftcms/cms/commit/b135384808ad43fcf8836a9dd9b877fb0087bc27
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