Missing Authentication for Critical Function in Craft CMS - CVE-2026-33159
Published: March 24, 2026
Vulnerability identifier: #VU124283
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-33159
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing authentication for critical function. A remote attacker can execute project configuration sync operations.
Affected software
Craft CMS
How to mitigate CVE-2026-33159
Install updates from vendor's website.
Craft CMS - addressed in versions 4.17.8, 5.9.14