{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-53959","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-06-11T15:50:01.282Z","datePublished":"2026-08-18T21:35:55.492Z","dateUpdated":"2026-08-21T19:50:12.621Z"},"containers":{"cna":{"title":"4gaBoards: Mass Information Disclosure (Internal PII Leakage) on /api/users to any authenticated user","problemTypes":[{"descriptions":[{"cweId":"CWE-200","lang":"en","description":"CWE-200: Exposure of Sensitive Information to an Unauthorized Actor","type":"CWE"}]}],"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"}}],"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"}],"affected":[{"vendor":"RARgames","product":"4gaBoards","versions":[{"version":"< 3.3.9","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-08-18T21:35:55.492Z"},"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."}],"source":{"advisory":"GHSA-p77f-p47g-h72p","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/RARgames/4gaBoards/security/advisories/GHSA-p77f-p47g-h72p","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-21T19:49:46.338715Z","id":"CVE-2026-53959","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-08-21T19:50:12.621Z"}}]}}