CVE-2026-72827

HIGH 8.8

Grav CMS before 2.0.13 Remote Code Execution via Twig

CVSS Score

8.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-1336
Vendor	getgrav
Product	grav
Published	Aug 14, 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

getgrav / grav

0 < 2.0.13

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/getgrav/grav/security/advisories/GHSA-xx48-97m4-h7qm vulncheck.com: https://www.vulncheck.com/advisories/grav-cms-before-remote-code-execution-via-twig

Credits

🔍 Kuba0123