CVE-2026-53959

4gaBoards is a boards system for realtime project management. Prior to 3.3.9, 4gaBoards allows any authenticated user to enumerate account information for every user through GET /api/users and retrieve arbitrary accounts through GET /api/users/:id. The users/index and users/show actions rely only on the default is-authenticated policy in server/config/policies.js, and server/api/controllers/users/index.js returns the result of sails.helpers.users.getMany() without requester-specific authorization or response sanitization. Responses expose email, phone, organization, name, isAdmin, ssoGoogleEmail, ssoGithubEmail, and other SSO-linked email fields, including data for administrators. This enables instance-wide user enumeration, privacy loss, and targeted phishing reconnaissance. This issue is fixed in version 3.3.9.

• CWE-200

• https://github.com/RARgames/4gaBoards/commit/93099d913cbfdbb1799b4aca19d2d0c2d2a276fb
• https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9
• https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p
• https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p

Published

Aug 18, 2026

Last Modified

Sep 9, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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