CVE-2026-33159

Published March 24th, 2026

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CVSS v3

6.5

MEDIUM

CVSS v2

N/A

Affected

PROJECT

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.

craftcms/cms

Build bespoke content experiences with Craft.

GitHub

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