CVE-2018-16466

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{"affected": [{"affectedData": [{"product": "Nextcloud Server", "vendor": "n/a", "versions": [{"status": "affected", "version": "<14.0.0, <13.0.6, <12.0.11"}]}], "source": "support@hackerone.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "5C85548E-F62A-467A-A19A-281A4846D129", "versionEndExcluding": "12.0.11", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "64AB178F-B8BD-42B9-884C-510E440DB353", "versionEndExcluding": "13.0.6", "versionStartIncluding": "13.0.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta1:*:*:*:*:*:*", "matchCriteriaId": "A52F8C90-1506-454B-A77F-BE151363DFD4", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta2:*:*:*:*:*:*", "matchCriteriaId": "813FFC04-945F-4710-9474-344CDFE60536", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta3:*:*:*:*:*:*", "matchCriteriaId": "0E6E366E-B480-4F56-8921-41B3AD1D2C3E", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:beta4:*:*:*:*:*:*", "matchCriteriaId": "6472CDD2-0FA2-4742-82DE-7F5DA877D55A", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:rc1:*:*:*:*:*:*", "matchCriteriaId": "C9C1757C-A694-4F22-AF99-3FDC11E7BC8E", "vulnerable": true}, {"criteria": "cpe:2.3:a:nextcloud:nextcloud_server:14.0.0:rc2:*:*:*:*:*:*", "matchCriteriaId": "9F1B3B90-A91E-4285-93BF-30A5CE9C1AB7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper revalidation of permissions in Nextcloud Server prior to 14.0.0, 13.0.6 and 12.0.11 lead to not accepting access restrictions by acess tokens."}, {"lang": "es", "value": "La revalidaci\u00f3n incorrecta de permisos en Nextcloud Server en versiones anteriores a la 14.0.0, 13.0.6 y 12.0.11 conduce a que no se acepten las restricciones de acceso de los tokens de acceso."}], "id": "CVE-2018-16466", "lastModified": "2026-06-17T01:44:20.490", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "SINGLE", "availabilityImpact": "NONE", "baseScore": 5.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.0, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2018-10-30T21:29:00.793", "references": [{"source": "support@hackerone.com", "tags": ["Third Party Advisory"], "url": "https://hackerone.com/reports/388515"}, {"source": "support@hackerone.com", "tags": ["Vendor Advisory"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-010"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "https://hackerone.com/reports/388515"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Vendor Advisory"], "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2018-010"}], "sourceIdentifier": "support@hackerone.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}], "source": "support@hackerone.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-273"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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