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CVE-2025-66844

Critical

Description

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

SeverityCritical
CVSS9.1
Exploit probability—
ProductGrav
PublishedDec 15, 2025
First seenDec 15, 2025
Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update
  • getgrav grav1.7.49.5 or later

Affected products

ProductAffected versionsFixed in
getgrav gravv < 1.7.49.51.7.49.5
getgrav/gravPackagistv ≤ 1.7.49.5—

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