CVE-2026-72827: Grav CMS before 2.0.13 Remote Code Execution via Twig

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-14 · updated 2026-09-08
Weakness: CWE-1336

Description

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.

Affected products

getgrav grav: before 2.0.13 — fixed in 2.0.13

How to fix

Upgrade to a fixed version: getgrav grav 2.0.13. Check the vendor advisory for mitigations.

References

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

Get alerted when CVE-2026-72827 or the next vulnerability affects your stack