CVE-2026-33159

EUVD-2026-14938
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
craftcmscraft_cms
4.0.0 <
𝑥
< 4.17.8
craftcmscraft_cms
5.0.0 <
𝑥
< 5.9.14
craftcmscraft_cms
4.0.0
craftcmscraft_cms
4.0.0:rc1
craftcmscraft_cms
4.0.0:rc2
craftcmscraft_cms
4.0.0:rc3
craftcmscraft_cms
5.0.0
craftcmscraft_cms
5.0.0:rc1
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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