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VULNERABILITIES

CVE-2026-33159 Details

Description

Craft CMS is a content management system (CMS). From version 4.0.0-RC1 to before version 4.17.8 and from version 5.0.0-RC1 to before version 5.9.14, guest users can access Config Sync updater index, obtain signed data, and execute state-changing Config Sync actions (regenerate-yaml, apply-yaml-changes) without authentication. This issue has been patched in versions 4.17.8 and 5.9.14.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592 [email protected]Patch
https://github.com/craftcms/cms/releases/tag/4.17.8 [email protected]Release Notes
https://github.com/craftcms/cms/releases/tag/5.9.14 [email protected]Release Notes
https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w [email protected]Vendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-306Missing Authentication for Critical Function[email protected]
CWE-862Missing Authorization[email protected]

Affected Products

ProductVersions
craftcms craft cms
> 4.0.0, < 4.17.8
> 5.0.0, < 5.9.14
4.0.0 -
4.0.0 rc1
4.0.0 rc2

CPE

  • cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*
  • cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-33159
NVD Published Date:
Mar 24, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-33159 Details - Not Deferred