CVE-2026-42613
Grav: Privilege Escalation via Missing Server-Side Validation of groups/access
CRITICAL 9.4EPSS 0.6%
Grav is a file-based Web platform. Prior to 2.0.0-beta.2, the Login::register() method in the Login plugin accepts attacker-controlled groups and access fields from the registration POST data without server-side validation. When registration is enabled and groups or access are included in the configured allowed fields list, an unauthenticated user can self-register with admin.super privileges by injecting these fields into the registration request. This vulnerability is fixed in 2.0.0-beta.2.
- Affected
- getgrav · grav
- CVSS v3.1 GITHUB
- 9.4 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L - EPSS
- 0.56% chance of exploitation in the next 30 days, 45th percentile
- Published
- 2026-05-11
- Updated
- 2026-05-12