{"id":"CVE-2025-66844","aliases":["GHSA-729w-j79f-2c34"],"url":"https://o3.security/vulnerability/CVE-2025-66844","summary":"Grav may be vulnerable to SSRF attack via Twig Templates","details":"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","published":"2025-12-15T00:00:00Z","modified":"2026-08-12T03:51:35.403298545Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"getgrav/grav","fixedVersion":null}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/66xxx/CVE-2025-66844.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-66844"},{"type":"REPORT","url":"https://github.com/Yohane-Mashiro/grav_cve/issues/2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:35.403298545Z"}}