CVE-2026-42613 | THREATINT

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.

PUBLISHED Reserved 2026-04-29 | Published 2026-05-11 | Updated 2026-05-11 | Assigner GitHub_M

CRITICAL: 9.4CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Problem types

CWE-20: Improper Input Validation

CWE-862: Missing Authorization

Product status

< 2.0.0-beta.2
affected

References

github.com/…v/grav/security/advisories/GHSA-pxm6-mhxr-q4mj

github.com/…ommit/3d419a0dabd70aed1fd49afcd5919004a4141da1

cve.org (CVE-2026-42613)

nvd.nist.gov (CVE-2026-42613)

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