4gaBoards vulnerabilities

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.

Vulnerability in 4gaBoards (before 3.3.9) allows an authenticated user to modify SSO identity attributes (e.g., ssoGoogleId) via PATCH /api/users/:id. An attacker can assign a victim's identifier to their account, leading to account takeover during the victim's first SSO login.

Vulnerability in 4gaBoards (before 3.3.8) allows pre-account takeover when registration and SSO are enabled. An attacker can create an unverified account with the victim's email, and during the victim's first SSO login, the SSO identity is linked to the attacker's account.

4gaBoards before version 3.3.8 allows an authenticated project manager to supply traversal sequences in the filename parameter of GET /exports/:id/:filename. In server/api/controllers/boards/download.js, the decoded inputs.filename value is passed to path.join() without containment validation, allowing arbitrary file read. The fileStream close handler then deletes the selected file, potentially causing data loss or DoS.