RCE in Craftcms Cms
CVE-2026-112774
Craft CMS from 5.8.0 before 5.11.0 contains a remote code execution vulnerability that allows authenticated administrators to inject Yii behaviors by supplying a JSON-string field layout to ContentBlock::setFieldLayout(). Attackers with allowAdminChanges enabled can include 'as X' or 'on X' keys that bypass cleanseConfig() to execute OS commands as the web user and disclose secrets.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- github.com/craftcms/cms/security/advisories/GHSA-j6r9-fxgv-j7x5 (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-5.8.0-before-5.11.0-admin-rce-via-conten… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-112774?
- CVE-2026-112774 is a high-severity vulnerability in Craftcms Cms, classified under Code Injection. CVSS score: 7.2/10. Published 2026-10-19.
- How severe is CVE-2026-112774?
- High severity. CVSS v3 base score is 7.2 out of 10.