This advisory has been withdrawn because it is a duplicate of GHSA-3jhr-mxmx-38cx. This link is maintained to preserve external references.
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.
{
"cwe_ids": [
"CWE-522"
],
"github_reviewed": true,
"github_reviewed_at": "2026-09-17T20:27:12Z",
"nvd_published_at": "2026-08-25T02:16:51Z",
"severity": "HIGH"
}