CVE-2026-33159

medium

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.

References

https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w

https://github.com/craftcms/cms/releases/tag/5.9.14

https://github.com/craftcms/cms/releases/tag/4.17.8

https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592

Details

Source: Mitre, NVD

Published: 2026-03-24

Updated: 2026-03-26

Risk Information

CVSS v2

Base Score: 6.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 6.5

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

Severity: Medium

CVSS v4

Base Score: 6.9

Vector: 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

Severity: Medium

EPSS

EPSS: 0.00106