---
id: CVE-2026-109312
title: >-
  Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in
  processUserProfile(), which checks that the session user exists but not that a
  pending front-end 2FA session is fully authorized
summary: >-
  Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in
  processUserProfile(), which checks that the session user exists but not that a
  pending front-end 2FA session is fully authorized. Attackers with a victim's
  passwor…
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'
cwe:
  - CWE-287
published: '2026-10-12'
updated: '2026-10-12'
sourceUpdated: '2026-10-12T17:17:25.890'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-109312'
references:
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-5rph-jqcf-2x36'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/grav-login-plugin-2.7.0-before-3.9.9-2fa-bypass-via-profile-update-form
    label: disclosure@vulncheck.com
tags:
  - nvd
ingestedAt: '2026-10-12T18:00:08.198Z'
---

## Overview

Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in processUserProfile(), which checks that the session user exists but not that a pending front-end 2FA session is fully authorized. Attackers with a victim's password who can publish a page form without an access rule can invoke update_user before completing 2FA to disable twofa_enabled and take over the account.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.