Headline
GHSA-729w-j79f-2c34: Grav may be vulnerable to SSRF attack via Twig Templates
In grav <1.7.49.5, a SSRF (Server-Side Request Forgery) vector may be triggered via Twig templates when page content is processed by Twig and the configuration allows undefined PHP functions to be registered.
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- GitHub Advisory Database
- GitHub Reviewed
- CVE-2025-66844
Grav may be vulnerable to SSRF attack via Twig Templates
Critical severity GitHub Reviewed Published Dec 15, 2025 to the GitHub Advisory Database • Updated Dec 17, 2025
Package
Affected versions
<= 1.7.49.5
Description
Published to the GitHub Advisory Database
Dec 15, 2025
Last updated
Dec 17, 2025