CVE-2026-31857

Craft is a content management system (CMS). Prior to 5.9.9 and 4.17.4, a Remote Code Execution vulnerability exists in the Craft CMS 5 conditions system. The BaseElementSelectConditionRule::getElementIds() method passes user-controlled string input through renderObjectTemplate() -- an unsandboxed Twig rendering function with escaping disabled. Any authenticated Control Panel user (including non-admin roles such as Author or Editor) can achieve full RCE by sending a crafted condition rule via standard element listing endpoints. This vulnerability requires no admin privileges, no special permissions beyond basic control panel access, and bypasses all production hardening settings (allowAdminChanges: false, devMode: false, enableTwigSandbox: true). Users should update to the patched 5.9.9 or 4.17.4 release to mitigate the issue.

CVSS

No CVSS.

References

Link	Resource
https://github.com/craftcms/cms/commit/8d4903647dcfd31b8d40ed027e27082013347a80
https://github.com/craftcms/cms/security/advisories/GHSA-fp5j-j7j4-mcxc

Configurations

No configuration.

History

11 Mar 2026, 18:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-03-11 18:16

Updated : 2026-03-12 21:08

NVD link : CVE-2026-31857

Mitre link : CVE-2026-31857

CVE.ORG link : CVE-2026-31857

JSON object : View

Products Affected

No product.

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

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