{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53958", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-11T15:50:01.282Z", "datePublished": "2026-08-18T21:34:59.454Z", "dateUpdated": "2026-08-18T21:34:59.454Z"}, "containers": {"cna": {"title": "4gaBoards: SSO Pre-Account Takeover / Hijacking via Mass Assignment", "problemTypes": [{"descriptions": [{"cweId": "CWE-287", "lang": "en", "description": "CWE-287: Improper Authentication", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-915", "lang": "en", "description": "CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L", "version": "3.1"}}], "references": [{"name": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-j2fw-r2gj-hfr3", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-j2fw-r2gj-hfr3"}, {"name": "https://github.com/RARgames/4gaBoards/commit/7a79f4c5d338614058515752abd67e49ee2818bb", "tags": ["x_refsource_MISC"], "url": "https://github.com/RARgames/4gaBoards/commit/7a79f4c5d338614058515752abd67e49ee2818bb"}, {"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": "2026-08-18T21:34:59.454Z"}, "descriptions": [{"lang": "en", "value": "4gaBoards is a boards system for realtime project management. Prior to 3.3.9, 4gaBoards allows an authenticated user to modify ssoGoogleId, ssoGoogleEmail, ssoGithubId, ssoGithubUsername, ssoGithubEmail, ssoMicrosoftId, ssoMicrosoftEmail, ssoOidcId, and ssoOidcEmail through PATCH /api/users/:id. The whitelist in server/api/controllers/users/update.js mass assigns these backend-managed identity attributes from user input. An attacker can place a victim's provider identifier on an attacker-controlled account, causing the default lookup in helpers such as server/api/helpers/users/get-create-one-for-github-sso.js to match the victim's first SSO login to the attacker's account before the email-linkage flow runs. The victim is logged into the attacker-controlled account, and projects, boards, or data the victim creates remain accessible through the attacker's original local credentials. This issue is fixed in version 3.3.9."}], "source": {"advisory": "GHSA-j2fw-r2gj-hfr3", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "4gaBoards", "vendor": "RARgames", "versions": [{"status": "affected", "version": "< 3.3.9"}]}], "source": "[email protected]"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "4gaBoards is a boards system for realtime project management. Prior to 3.3.9, 4gaBoards allows an authenticated user to modify ssoGoogleId, ssoGoogleEmail, ssoGithubId, ssoGithubUsername, ssoGithubEmail, ssoMicrosoftId, ssoMicrosoftEmail, ssoOidcId, and ssoOidcEmail through PATCH /api/users/:id. The whitelist in server/api/controllers/users/update.js mass assigns these backend-managed identity attributes from user input. An attacker can place a victim's provider identifier on an attacker-controlled account, causing the default lookup in helpers such as server/api/helpers/users/get-create-one-for-github-sso.js to match the victim's first SSO login to the attacker's account before the email-linkage flow runs. The victim is logged into the attacker-controlled account, and projects, boards, or data the victim creates remain accessible through the attacker's original local credentials. This issue is fixed in version 3.3.9."}], "id": "CVE-2026-53958", "lastModified": "2026-08-18T22:16:54.717", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 7.6, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L", "version": "3.1"}, "exploitabilityScore": 2.1, "impactScore": 5.5, "source": "[email protected]", "type": "Secondary"}]}, "published": "2026-08-18T22:16:54.717", "references": [{"source": "[email protected]", "url": "https://github.com/RARgames/4gaBoards/commit/7a79f4c5d338614058515752abd67e49ee2818bb"}, {"source": "[email protected]", "url": "https://github.com/RARgames/4gaBoards/releases/tag/v3.3.9"}, {"source": "[email protected]", "url": "https://github.com/RARgames/4gaBoards/security/advisories/GHSA-j2fw-r2gj-hfr3"}], "sourceIdentifier": "[email protected]", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-915"}], "source": "[email protected]", "type": "Primary"}]}

{}

{}