---
id: CVE-2026-50191
title: 4gaBoards is a boards system for realtime project management
summary: >-
  4gaBoards is a boards system for realtime project management. Prior to 3.3.8,
  4gaBoards is vulnerable to pre-account takeover when registrationEnabled,
  localRegistrationEnabled, and ssoRegistrationEnabled are enabled and Google,
  GitHub, …
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-287
  - CWE-288
published: '2026-08-18'
updated: '2026-09-09'
sourceUpdated: '2026-09-09T21:13:25.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-50191'
references:
  - url: >-
      https://github.com/RARgames/4gaBoards/commit/484c92d583cfbc6815f96364071bb531ec594bf8
    label: security-advisories@github.com
  - url: 'https://github.com/RARgames/4gaBoards/releases/tag/v3.3.8'
    label: security-advisories@github.com
  - url: >-
      https://github.com/RARgames/4gaBoards/security/advisories/GHSA-f3p6-chc6-pc77
    label: security-advisories@github.com
tags:
  - nvd
epss: 0.00328
epssPercentile: 0.2613
ingestedAt: '2026-09-09T21:22:45.538Z'
---

## Overview

4gaBoards is a boards system for realtime project management. Prior to 3.3.8, 4gaBoards is vulnerable to pre-account takeover when registrationEnabled, localRegistrationEnabled, and ssoRegistrationEnabled are enabled and Google, GitHub, Microsoft, or OIDC SSO is configured. The POST /api/register endpoint permits creation of an unverified local account with a victim's email address, and POST /api/access-tokens permits that account to authenticate while isVerified is false. During the victim's first SSO login, server/api/helpers/users/get-create-one-for-github-sso.js, server/api/helpers/users/get-create-one-for-google-sso.js, server/api/helpers/users/get-create-one-for-microsoft-sso.js, and server/api/helpers/users/get-create-one-for-oidc-sso.js find the attacker-controlled account by email and link the verified SSO identity without confirming ownership of the local account. The attacker can retain local-password access to the linked account and obtain the victim's projects, data, and permissions. This issue is fixed in version 3.3.8.

## Remediation

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