Improper Neutralization of Special Elements Used in a Template Engine in Craft CMS - CVE-2026-28784
Published: May 4, 2026
Vulnerability identifier: #VU129392
CSH Severity: Low
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-28784
CWE-ID: CWE-1336
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to server-side template injection (SSTI) issue in Twig "map" filter. A remote administrator can execute arbitrary code on the system.
Affected software
Craft CMS
How to mitigate CVE-2026-28784
Install updates from vendor's website.
Craft CMS - addressed in versions 4.16.18, 5.8.22