Description
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 products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| RARgames | 4gaBoards | < 3.3.9 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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4gaBoards Mass User Information Disclosure (CVE-2026-53959)
auxiliary/gather/4gaboards_users_info_disclosure_cve_2026_53959
GitHub 1 repository
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anirbala98/CVE-2026-53959 ★ 1 · Aug 19, 2026
4gaBoards < 3.3.9 - User Information Disclosure
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.