CVE-2026-33159

MEDIUM EPSS 22.5%
Published Mar 24, 20263mo ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Mar 24, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
22.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-306 Missing Authentication for Critical Function Authentication
CWE-862 Missing Authorization Authorization

Affected Products 8

VendorProductVersionRange
craftcmscraft_cms*>4.0.0  –  <4.17.8
craftcmscraft_cms*>5.0.0  –  <5.9.14
craftcmscraft_cms4.0.0any
craftcmscraft_cms4.0.0any
craftcmscraft_cms4.0.0any
craftcmscraft_cms4.0.0any
craftcmscraft_cms5.0.0any
craftcmscraft_cms5.0.0any

References 4

  • github.com https://github.com/craftcms/cms/commit/7f0ead833f7c2b91ae12003caad833479dd08592
    Patch
  • github.com https://github.com/craftcms/cms/releases/tag/4.17.8
    Release Notes
  • github.com https://github.com/craftcms/cms/releases/tag/5.9.14
    Release Notes
  • github.com https://github.com/craftcms/cms/security/advisories/GHSA-6mrr-q3pj-h53w
    Vendor Advisory

Remediation

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