CVE-2026-53959
4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user
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.
- Affected
- RARgames · 4gaBoards
- CVSS v3.1 GITHUB
- 6.5 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - EPSS
- 1.03% chance of exploitation in the next 30 days, 63rd percentile
- Published
- 2026-08-18
- Updated
- 2026-08-21
Proof-of-concept exploits (1)
- anirbala98/CVE-2026-539591★ · 2026-08-19