What is CVE-2026-72827?

CVE-2026-72827 is a high-severity vulnerability in Getgrav Grav, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.8/10. Published 2026-08-14.

How severe is CVE-2026-72827?

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

Vulnerability in Getgrav Grav

CVE-2026-72827

Grav CMS before 2.0.13 contains a server-side template injection vulnerability in email-action parameters that allows low-privileged page editors to execute arbitrary operating-system commands. Attackers can inject Twig payloads using the unsandboxed find filter in email subject, body, to, or from fields to achieve remote code execution when forms are submitted.

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

Getgrav Grav — versions 0, 2.0.13

Weakness classification (CWE)

CWE-1336 — Improper Neutralization of Special Elements Used in a Template Engine

References

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

Frequently asked questions

What is CVE-2026-72827?: CVE-2026-72827 is a high-severity vulnerability in Getgrav Grav, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 8.8/10. Published 2026-08-14.
How severe is CVE-2026-72827?: High severity. CVSS v3 base score is 8.8 out of 10.