CVE-2026-53959 (GCVE-0-2026-53959)

Vulnerability from cvelistv5 – Published: 2026-08-18 21:35 – Updated: 2026-08-18 21:35
VLAI
Title
4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user
Summary
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version CPE status
RARgames 4gaBoards Affected: < 3.3.9
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "4gaBoards",
          "vendor": "RARgames",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 3.3.9"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-200",
              "description": "CWE-200: Exposure of Sensitive Information to an Unauthorized Actor",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-18T21:35:55.492Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p"
        },
        {
          "name": "https://github.com/RARgames/4gaBoards/commit/93099d913cbfdbb1799b4aca19d2d0c2d2a276fb",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RARgames/4gaBoards/commit/93099d913cbfdbb1799b4aca19d2d0c2d2a276fb"
        },
        {
          "name": "https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9"
        }
      ],
      "source": {
        "advisory": "GHSA-p77f-p47g-h72p",
        "discovery": "UNKNOWN"
      },
      "title": "4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-53959",
    "datePublished": "2026-08-18T21:35:55.492Z",
    "dateReserved": "2026-06-11T15:50:01.282Z",
    "dateUpdated": "2026-08-18T21:35:55.492Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53959",
      "date": "2026-08-20",
      "epss": "0.00321",
      "percentile": "0.2501"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53959\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-08-18T22:16:54.907\",\"lastModified\":\"2026-08-18T22:16:54.907\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"RARgames\",\"product\":\"4gaBoards\",\"versions\":[{\"version\":\"\u003c 3.3.9\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\",\"baseScore\":6.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-200\"}]}],\"references\":[{\"url\":\"https://github.com/RARgames/4gaBoards/commit/93099d913cbfdbb1799b4aca19d2d0c2d2a276fb\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p\",\"source\":\"security-advisories@github.com\"}]}}"
  }
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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