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OpenAdvisories
High · 8.8 CVE-2026-124430 EUVD-2026-119570GHSA-6pc2-3wgv-f5mj

Craft CMS 5.10.0 before 5.11.2 RCE via app/render-elements Signing Oracle

Published Nov 8, 2026 · Updated Nov 12, 2026 · Assigned by VulnCheck

Description

Craft CMS from 5.10.0 before 5.11.2 contains a remote code execution vulnerability that allows non-administrator control panel users to obtain HMAC-signed Twig templates via the app/render-elements endpoint. Attackers can submit the signed templated returnUrl as the login redirect parameter, triggering unsandboxed renderObjectTemplate() evaluation and executing OS commands as the PHP worker.

Affected products

VendorProductAffectedFixed
craftcms cms 5.10.0 – < 5.11.2 5.11.2

References