CVE-2026-31857
- Source
- https://cve.org/CVERecord?id=CVE-2026-31857
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31857.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31857
- Aliases
- Published
- 2026-03-11T17:30:29.092Z
- Modified
- 2026-07-15T01:49:09.413616534Z
- Severity
-
- 8.1 (High) CVSS_V4 - 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 CVSS Calculator
- Summary
- CraftCMS has an RCE vulnerability via relational conditionals in the control panel
- Details
-
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.
- Database specific
{ "cwe_ids": [ "CWE-94" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31857.json", "cna_assigner": "GitHub_M" }- References
Affected packages
Git / github.com/craftcms/cms
Affected ranges
- Type
- GIT
- Repo
- https://github.com/craftcms/cms
- Events
- Database specific
{ "cpe": [ "cpe:2.3:a:craftcms:craft_cms:*:*:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:4.0.0:-:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc1:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc2:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:4.0.0:rc3:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:5.0.0:-:*:*:*:*:*:*", "cpe:2.3:a:craftcms:craft_cms:5.0.0:rc1:*:*:*:*:*:*" ], "source": [ "CPE_RANGE", "CPE_STRING", "REFERENCES" ], "extracted_events": [ { "introduced": "4.0.0.1" }, { "fixed": "4.17.4" }, { "introduced": "5.0.1" }, { "fixed": "5.9.9" }, { "introduced": "4.0.0-NA" }, { "last_affected": "4.0.0-NA" }, { "introduced": "4.0.0-rc1" }, { "last_affected": "4.0.0-rc1" }, { "introduced": "4.0.0-rc2" }, { "last_affected": "4.0.0-rc2" }, { "introduced": "4.0.0-rc3" }, { "last_affected": "4.0.0-rc3" }, { "introduced": "5.0.0-NA" }, { "last_affected": "5.0.0-NA" }, { "introduced": "5.0.0-rc1" }, { "last_affected": "5.0.0-rc1" } ] }