What is CVE-2026-72781?

CVE-2026-72781 is a high-severity vulnerability in Craftcms Cms, classified under Protection Mechanism Failure. CVSS score: 8.8/10. Published 2026-08-11.

How severe is CVE-2026-72781?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Craftcms Cms

CVE-2026-72781

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)…

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Craftcms Cms — versions 5.0.0-RC1, 5.10.7, 4.0.0-RC1

Weakness classification (CWE)

CWE-693 — Protection Mechanism Failure

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-72781?: CVE-2026-72781 is a high-severity vulnerability in Craftcms Cms, classified under Protection Mechanism Failure. CVSS score: 8.8/10. Published 2026-08-11.
How severe is CVE-2026-72781?: High severity. CVSS v3 base score is 8.8 out of 10.