CVE-2026-72781

HIGH 8.8

Craft CMS 5.0.0-RC1 before 5.10.7 Remote Code Execution via Twig Sandbox Escape

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

Craft CMS versions >= 5.0.0-RC1 before 5.10.7 and >= 4.0.0-RC1 before 4.18.3 contain a remote code execution vulnerability in the Twig sandbox mechanism. Because Craft marks the ElementInterface as safe (via the AllowedInSandbox attribute) and the sandbox allowlisting extends to the entire class hierarchy (craft\base\Component up to yii\base\Component), an authenticated attacker with permission to access the control panel can render a malicious Twig template that abuses the yii\base\Component arbitrary function-call gadget to execute arbitrary code, even when the Twig sandbox is enabled via enableTwigSandbox().

CWE	CWE-693
Vendor	craftcms
Product	cms
Published	Aug 11, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

craftcms / cms

5.0.0-RC1 < 5.10.7

craftcms / cms

4.0.0-RC1 < 4.18.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/craftcms/cms/security/advisories/GHSA-f5wm-88jv-g5hx vulncheck.com: https://www.vulncheck.com/advisories/craft-cms-rc1-before-remote-code-execution-via-twig-sandbox-escape