CVE-2026-53959
MediumCVSS 6.5Exploitation Probability (EPSS)
Low risk25th percentile - higher than 25% of all known CVEs
Summary
Vulnerability in 4gaBoards (before 3.3.9) allows any authenticated user to enumerate accounts and read data of all users via the /api/users API, without authorization.
Risk Assessment
Risk of privacy breach, exposure of personal data and email addresses, which can be used for phishing or further attacks.
Recommendation
Update 4gaBoards to version 3.3.9 or later, which includes the fix.
Original NVD description (English source)
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.