All vulnerabilities
CVE-2026-53959GHSA-p77f-p47g-h72p

4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user

RARgames 4gaBoards
CVSS
6.5Medium
ExploitationPublic exploit codeAuxiliary module, 5 Jun 2026. Not in the KEV catalogMetasploit
Exploit odds (EPSS)1.03%Chance of exploitation activity in the next 30 days, higher than 63% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.3.9Fixed versionGitHub
Published18 Aug 2026Updated 21 Aug 2026CVE List

What fixes it

  • 3.3.94gaboards, npmGitHubnpm install 4gaboards@3.3.9

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 5 Jun 2026Exploit code publicMetasploit
  2. 18 Aug 2026, 21:35 UTCPublishedCVE List

Public exploit code and templates 1

  • Auxiliary module4gaBoards Mass User Information Disclosure (CVE-2026-53959) 5 Jun 2026Metasploit

Listed so defenders can prioritize. Threatline links to the source and does not host exploit code.

Reports 1

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 2

  • 4gaBoardsaffected: < 3.3.9CVE List
  • 4gaboards, npm<= 3.3.8GitHub

References 3