Information disclosure in Craftcms Cms
CVE-2026-109304
Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 contains an arbitrary file read vulnerability because the Twig create() class blocklist does not cover DOMDocument. Attackers able to set an entry-type title format, including via project-config/apply, can use create('DOMDocument').loadHTMLFile() with textContent to expose local file contents to non-admin users who can view entries.
Vulnerability class: Information Disclosure
Published .
CVSS v3 metric
CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.
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-j5wg-m2pr-35qc (vendor-advisory)
- www.vulncheck.com/advisories/craft-cms-4.0.0-before-4.18.7-and-5.0.0-before-5.1… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-109304?
- CVE-2026-109304 is a medium-severity vulnerability in Craftcms Cms, classified under Information Disclosure. CVSS score: 4.9/10. Published 2026-10-12.
- How severe is CVE-2026-109304?
- Medium severity. CVSS v3 base score is 4.9 out of 10.