Critical severity · published Dec 15, 2025
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…
9.1
CVSS
0.3%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 21% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GR
Grav · Getgrav
before 1.7.49.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-66844
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-66844
Exploit
https://github.com/Yohane-Mashiro/grav_cve/issues/2
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