CVE-2026-42613
Critical
Description
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.
SeverityCritical
CVSS9.4
Exploit probability—
ProductGetgrav/grav
PublishedMay 11, 2026
First seenMay 11, 2026
How to fix
Update
- getgrav/grav2.0.0-beta.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| getgrav/gravPackagist | v < 2.0.0-beta.2 | 2.0.0-beta.2 |
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