CVE-2026-33159

6.9 mediumEPSS 0.3%

Medium (6.9) in craftcms craft cms. EPSS 0.3% chance of exploitation in the next 30 days.

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.

Severity

CVSS 4.0

6.9 medium

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.5 medium

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 24% of CVEs (scores of 2026-10-31)
CWEs: CWE-306, CWE-862
Published: 2026-03-24
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

craftcms:craft_cms

References

https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592
https://github.com/craftcms/cms/releases/tag/4.17.8
https://github.com/craftcms/cms/releases/tag/5.9.14
https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w

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