---
id: CVE-2026-62671
title: 'Grav Login Plugin adds login, basic ACL, and session wide messages to Grav'
summary: >-
  Grav Login Plugin adds login, basic ACL, and session wide messages to Grav.
  Prior to 3.8.11, the Grav Login plugin login.regenerate2FASecret task accepts
  a top-level GET request through the TaskServiceProvider task: URI parameter
  without…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L'
cwe:
  - CWE-352
published: '2026-08-19'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:13:25.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-62671'
references:
  - url: >-
      https://github.com/getgrav/grav-plugin-login/commit/5d1b722298cb947d8f434025d121b99152a2c630
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav-plugin-login/releases/tag/3.8.11'
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-4px8-7p53-282r'
    label: security-advisories@github.com
  - url: 'https://github.com/getgrav/grav/security/advisories/GHSA-4px8-7p53-282r'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00178
epssPercentile: 0.06519
ingestedAt: '2026-09-09T21:22:45.540Z'
---

## Overview

Grav Login Plugin adds login, basic ACL, and session wide messages to Grav. Prior to 3.8.11, the Grav Login plugin login.regenerate2FASecret task accepts a top-level GET request through the TaskServiceProvider task: URI parameter without requiring a login-form nonce, an Origin check, or a Referer check. Under the default SameSite=Lax session cookie policy, an off-site navigation can invoke taskRegenerate2FASecret() in a logged-in victim's session, overwrite the victim's TOTP secret, and force two-factor re-enrollment. This issue is fixed in version 3.8.11.

## Remediation

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