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Package details: pkg:composer/craftcms/cms@4.0.0-beta.1
purl pkg:composer/craftcms/cms@4.0.0-beta.1
Next non-vulnerable version 4.3.7
Latest non-vulnerable version 5.9.9
Risk
Vulnerabilities affecting this package (1)
Vulnerability Summary Fixed by
VCID-4wkr-jx1w-77hn
Aliases:
CVE-2026-31857
GHSA-fp5j-j7j4-mcxc
CraftCMS has an RCE vulnerability via relational conditionals in the control panel 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 5.99 release to mitigate the issue.
4.17.4
Affected by 0 other vulnerabilities.
5.9.9
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-06-02T04:51:41.605003+00:00 GitLab Importer Affected by VCID-4wkr-jx1w-77hn https://gitlab.com/gitlab-org/advisories-community/-/blob/main/packagist/craftcms/cms/CVE-2026-31857.yml 38.6.0