Vulnerability · Published Oct 12, 2026 · Assigned by VulnCheck

CVE-2026-109304Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 Arbitrary File Read via Twig create() DOMDocument

Medium 4.9

In plain English

A medium-severity information exposure in cms from craftcms. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).

Severity (CVSS 3.1)4.9Medium

Exploit odds (30 days)0.3%top 75.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
craftcms	cms	4.0.0 – before 4.18.7
craftcms	cms	5.0.0 – before 5.10.14

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-j5wg-m2pr-35qc) vendor-advisory
VulnCheck Advisory: Craft CMS 4.0.0 before 4.18.7 and 5.0.0 before 5.10.14 Arbitrary File Read via Twig create() DOMDocument third-party-advisory