Security advisory

{
  "id": "3039b4ca133f0d70306bd0c9c88515f977ca1b98bd3127d96393550a9832c1cc",
  "url": "https://osv.dev/vulnerability/CVE-2020-2300",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-2300",
    "summary": "Jenkins Active Directory Plugin 2.19 and earlier does not prohibit the use of an empty password in Windows/ADSI mode, which allows attackers to log in to Jenkins as any user depending on the configuration of the Active Directory server.",
    "evidence": "osv:CVE-2020-2300",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2020-2300",
      "aliases": [
        "CVE-2020-2300",
        "GHSA-8wcw-cw2f-h4g2"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jenkinsci/active-directory-plugin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "6235df351f09b46a33f96a332945f0518c7d27e0"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jenkins:active_directory:*:*:*:*:*:jenkins:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "2.19"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "active-directory-2.19",
            "active-directory-2.18",
            "active-directory-2.17",
            "active-directory-2.16",
            "active-directory-2.15",
            "active-directory-2.14",
            "active-directory-2.13",
            "active-directory-2.12",
            "active-directory-2.11",
            "active-directory-2.10",
            "active-directory-2.9",
            "active-directory-2.8",
            "active-directory-2.7",
            "active-directory-2.6",
            "active-directory-2.5",
            "active-directory-2.4",
            "active-directory-2.3",
            "active-directory-2.2",
            "active-directory-2.1",
            "active-directory-2.0",
            "active-directory-1.49",
            "active-directory-1.48",
            "active-directory-1.47",
            "active-directory-1.46",
            "active-directory-1.45",
            "active-directory-1.44",
            "active-directory-1.43",
            "active-directory-1.42",
            "active-directory-1.41",
            "active-directory-1.40",
            "active-directory-1.39",
            "active-directory-1.38",
            "active-directory-1.37",
            "active-directory-1.36",
            "active-directory-1.35",
            "active-directory-1.34",
            "active-directory-1.33",
            "active-directory-1.32",
            "active-directory-1.31",
            "active-directory-1.30",
            "active-directory-1.29",
            "active-directory-1.28",
            "active-directory-1.27",
            "active-directory-1.26",
            "active-directory-1.25",
            "active-directory-1.24",
            "active-directory-1.23",
            "active-directory-1.22",
            "active-directory-1.21",
            "active-directory-1.20",
            "active-directory-1.19"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-2300.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:58.045749201Z",
      "provider": "osv",
      "references": [
        "https://www.jenkins.io/security/advisory/2020-11-04/#SECURITY-2099"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-2300",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 438988,
  "published_at": "2020-11-04T15:15:11.067+00:00"
}