CVE-2026-76839
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Aug 25, 2026
Vendor
unknown
Description
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.