CVE-2026-33159CWE-306CWE-862

Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users

Medium · published March 24, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
38.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
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
EPSS
0.00451 · 38.2th percentile
Weaknesses
CWE-306 · Missing Authentication for Critical Function; CWE-862 · Missing Authorization
Published
2026-03-24T17:28Z
EPSS history
Timeline
  • 24 MAR 17:28Z
    Craft CMS: Unauthenticated users could execute project configuration sync operations that should be restricted trusted users
    cvelistv5