{"id":"CVE-2018-3775","aliases":["EUVD-2018-15573","GHSA-2v55-qcx6-c482"],"status":"published","title":"Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that...","description":"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.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.01234,"percentile":0.69196,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-287"],"published":"2018-08-12T22:00:00Z","modified":"2026-10-24T10:30:24Z","products":[{"vendor":"hackerone","product":"nextcloud server"},{"vendor":"nextcloud","product":"nextcloud_server"}],"references":[{"url":"https://nextcloud.com/security/advisory/?id=NC-SA-2018-007","tags":["x_refsource_CONFIRM","x_transferred","Broken Link","Vendor Advisory","advisory"]},{"url":"https://hackerone.com/reports/248656","tags":["x_refsource_MISC","x_transferred","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3775"},{"url":"https://github.com/advisories/GHSA-2v55-qcx6-c482"}],"sources":{"cve":[{"id":"CVE-2018-3775","description":"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.","status":"published","published":"2018-08-12T22:00:00Z","modified":"2024-08-05T04:50:30.743Z","cwes":["CWE-287"],"updated_at":"2026-11-02T14:35:05.262903Z"}],"euvd":[{"id":"EUVD-2018-15573","description":"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.","status":"published","published":"2018-08-12T22:00:00Z","modified":"2024-08-05T04:50:30Z","updated_at":"2026-11-03T02:40:15.208866Z"}],"ghsa":[{"id":"GHSA-2v55-qcx6-c482","title":"Improper Authentication in Nextcloud Server prior to version 12.0.3 would allow an attacker that...","description":"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.","status":"published","published":"2022-05-13T01:32:20Z","modified":"2023-02-01T05:08:12Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:50:42.317052Z"}],"nvd":[{"id":"CVE-2018-3775","description":"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.","status":"published","published":"2018-08-12T22:29:00.503Z","modified":"2026-06-17T01:57:48.447Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4,"vector":"AV:N/AC:L/Au:S/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-287"],"updated_at":"2026-11-02T14:04:35.310988Z"}],"osv":[{"id":"CVE-2018-3775","description":"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.","status":"published","published":"2018-08-12T22:29:00.503Z","modified":"2026-10-24T10:30:24.98661623Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:09.442568Z"}]}}