8.8

CVE-2026-31857

CraftCMS has an RCE vulnerability via relational conditionals in the control panel

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Craftcms ≫ Craft Cms Version >= 4.0.0.1 < 4.17.4
Craftcms ≫ Craft Cms Version >= 5.0.1 < 5.9.9
Craftcms ≫ Craft Cms Version 4.0.0 Update -
Craftcms ≫ Craft Cms Version 4.0.0 Update beta1
Craftcms ≫ Craft Cms Version 4.0.0 Update beta2
Craftcms ≫ Craft Cms Version 4.0.0 Update beta3
Craftcms ≫ Craft Cms Version 4.0.0 Update beta4
Craftcms ≫ Craft Cms Version 4.0.0 Update rc1
Craftcms ≫ Craft Cms Version 4.0.0 Update rc2
Craftcms ≫ Craft Cms Version 4.0.0 Update rc3
Craftcms ≫ Craft Cms Version 5.0.0 Update -
Craftcms ≫ Craft Cms Version 5.0.0 Update rc1
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.67% 0.469
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
security-advisories@github.com 8.1 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

https://github.com/craftcms/cms/security/advisories/GHSA-fp5j-j7j4-mcxc
Patch
Vendor Advisory
https://github.com/craftcms/cms/commit/8d4903647dcfd31b8d40ed027e27082013347a80
Patch