{"affected":[{"affectedData":[{"product":"Nextcloud Server","vendor":"HackerOne","versions":[{"status":"affected","version":"<12.0.3"}]}],"source":"support@hackerone.com"}],"configurations":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*","matchCriteriaId":"820D7B76-C6B7-40E4-AF0C-2D0BAFA5E223","versionEndExcluding":"12.0.3","vulnerable":true}],"negate":false,"operator":"OR"}]}],"cveTags":[],"descriptions":[{"lang":"en","value":"Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that obtained user credentials to bypass the 2 Factor Authentication."},{"lang":"es","value":"Autenticación incorrecta en Nextcloud Server en versiones anteriores a la 12.0.3 permitiría que un atacante que haya obtenido credenciales de usuario omita la autenticación de dos factores."}],"id":"CVE-2018-3775","lastModified":"2026-06-17T01:57:48.447","metrics":{"cvssMetricV2":[{"acInsufInfo":false,"baseSeverity":"MEDIUM","cvssData":{"accessComplexity":"LOW","accessVector":"NETWORK","authentication":"SINGLE","availabilityImpact":"NONE","baseScore":4.0,"confidentialityImpact":"NONE","integrityImpact":"PARTIAL","vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:N","version":"2.0"},"exploitabilityScore":8.0,"impactScore":2.9,"obtainAllPrivilege":false,"obtainOtherPrivilege":false,"obtainUserPrivilege":false,"source":"nvd@nist.gov","type":"Primary","userInteractionRequired":false}],"cvssMetricV31":[{"cvssData":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"exploitabilityScore":2.8,"impactScore":5.9,"source":"nvd@nist.gov","type":"Primary"}]},"published":"2018-08-12T22:29:00.503","references":[{"source":"support@hackerone.com","tags":["Issue Tracking","Third Party Advisory"],"url":"https://hackerone.com/reports/248656"},{"source":"support@hackerone.com","tags":["Broken Link","Vendor Advisory"],"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2018-007"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Issue Tracking","Third Party Advisory"],"url":"https://hackerone.com/reports/248656"},{"source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Broken Link","Vendor Advisory"],"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2018-007"}],"sourceIdentifier":"support@hackerone.com","vulnStatus":"Modified","weaknesses":[{"description":[{"lang":"en","value":"CWE-287"}],"source":"support@hackerone.com","type":"Secondary"},{"description":[{"lang":"en","value":"CWE-287"}],"source":"nvd@nist.gov","type":"Primary"}]}