{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.3.9"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "93099d913cbfdbb1799b4aca19d2d0c2d2a276fb"
            },
            {
              "fixed": "96cec781dc3e8857a22cb7b2b0adddf27b59748d"
            }
          ],
          "repo": "https://github.com/rargames/4gaboards",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-p77f-p47g-h72p"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-200"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53959.json"
  },
  "details": "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.",
  "id": "CVE-2026-53959",
  "modified": "2026-09-11T03:31:01.914185650Z",
  "published": "2026-08-18T21:35:55.492Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53959.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53959"
    },
    {
      "type": "FIX",
      "url": "https://github.com/RARgames/4gaBoards/commit/93099d913cbfdbb1799b4aca19d2d0c2d2a276fb"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user"
}