CVE-2025-66844
CRITICALCVSS 9.1/10EPSS 0.25%
Last modified
CVE-2025-66844 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Getgrav | Grav | < 1.7.49.5 |
References
- https://github.com/Yohane-Mashiro/grav_cve/issues/2Exploit, Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2025-66844?
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
How severe is CVE-2025-66844?
CVE-2025-66844 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.25% probability of exploitation in the next 30 days.
How do I fix CVE-2025-66844?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
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Are you affected by CVE-2025-66844?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST