Server-side Request Forgery (SSRF) Affecting getgrav/grav package, versions >=0.8.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about Server-side Request Forgery (SSRF) vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-PHP-GETGRAVGRAV-14426474
- published16 Dec 2025
- disclosed15 Dec 2025
- creditYohane-Mashiro
Introduced: 15 Dec 2025
CVE-2025-66844 (opens in a new tab)How to fix?
There is no fixed version for getgrav/grav.
Overview
getgrav/grav is a Modern, Crazy Fast, Ridiculously Easy and Amazingly Powerful Flat-File CMS.
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) in the processing of page content by Twig templates when configuration permits undefined PHP functions to be registered. An attacker can make unauthorized requests to internal or external resources by crafting malicious Twig templates.