Security advisory

{
  "id": "66be27a8975786f206c597d27641ce90ff270d1cbd5e1209a8793d0a3eb791c6",
  "url": "https://osv.dev/vulnerability/CVE-2018-3775",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-3775",
    "summary": "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.",
    "evidence": "osv:CVE-2018-3775",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-3775",
      "aliases": [
        "CVE-2018-3775"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nextcloud/server",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "343a69569db0aec48bc99fd3b23da08a7791d82b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "12.0.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v12.0.3RC2",
            "v12.0.3RC1",
            "v12.0.1",
            "v12.0.1RC5",
            "v12.0.1RC4",
            "v12.0.1RC3",
            "v12.0.1RC2",
            "v12.0.1RC1",
            "v12.0.0",
            "v12.0.0RC3",
            "v12.0.0RC2",
            "v12.0.0RC1",
            "v12.0.0beta4",
            "v12.0.0beta3",
            "v12.0.0beta2",
            "v12.0.0beta1",
            "v11.0.0",
            "v11.0RC2",
            "v9.1.0beta1",
            "v9.0.0beta2",
            "v9.0beta1",
            "v8.2RC1",
            "v8.2beta1",
            "v8.1RC2",
            "v8.1.0beta2",
            "v8.1.0beta1",
            "v8.1.0alpha2",
            "v8.1.0alpha1",
            "v8.0.0",
            "v8.0.0RC2",
            "v8.0.0RC1",
            "v8.0.0beta2",
            "v8.0.0beta1",
            "v8.0.0alpha2",
            "v8.0.0alpha1",
            "v7.0.0beta1",
            "v7.0.0alpha2",
            "v6.0.0RC2",
            "v6.0.0RC1",
            "v6.0.0beta5",
            "v6.0.0beta4",
            "v6.0.0beta3",
            "v6.0.0beta2",
            "v6.0.0alpha2",
            "v5.0.0",
            "v5.0.0RC3",
            "v5.0.0RC2",
            "v5.0.0RC1",
            "v5.0.0beta2",
            "v5.0.0beta1",
            "v5.0.0alpha1",
            "v4.5.0",
            "v4.5.0RC3",
            "v4.5.0RC2",
            "v4.5.0RC1",
            "v4.5.0beta4",
            "v4.5.0beta3",
            "v4.0.6",
            "v4.0.5",
            "v4.0.4",
            "v4.0.1",
            "v4.0.0",
            "v4.0.0RC2",
            "v4.0.0RC",
            "v4.0.0beta",
            "v3.0",
            "v1.0.0beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-3775.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:24.986616230Z",
      "provider": "osv",
      "references": [
        "https://nextcloud.com/security/advisory/?id=NC-SA-2018-007",
        "https://hackerone.com/reports/248656"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-3775",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431272,
  "published_at": "2018-08-12T22:29:00.503+00:00"
}