{"id":"CVE-2026-76839","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-76839","summary":"Grav before 2.0.16 allows sandboxed Twig templates to access sensitive User fields through allow-listed offsetGet() and offsetexists() methods that lack field filtering. Attackers with…","details":"Grav before 2.0.16 allows sandboxed Twig templates to access sensitive User fields through allow-listed offsetGet() and offsetexists() methods that lack field filtering. Attackers with page-edit permissions can call offsetGet() on User objects to extract hashed passwords and 2FA secrets, enabling offline password cracking and authentication bypass.","published":"2026-08-25T02:16:51.603","modified":"2026-08-25T02:16:51.603","cvss":{"score":6.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/getgrav/grav/security/advisories/GHSA-3jhr-mxmx-38cx"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/grav-before-information-disclosure-via-offsetget"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-25T02:16:51.603"}}