Security advisory

{
  "id": "e1247d980121d5492df32a869d009c1a7f92590b4433de4d86f82cbfd9fbe976",
  "url": "https://osv.dev/vulnerability/CVE-2020-2252",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-2252",
    "summary": "Jenkins Mailer Plugin 1.32 and earlier does not perform hostname validation when connecting to the configured SMTP server.",
    "evidence": "osv:CVE-2020-2252",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2020-2252",
      "aliases": [
        "CVE-2020-2252",
        "GHSA-6fr3-286q-q3cr"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/jenkinsci/mailer-plugin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "3997c089a018ae98a0ae18cb1d3c37bcc46cef3a"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:jenkins:mailer:*:*:*:*:*:jenkins:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.32"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "mailer-1.32",
            "mailer-1.31",
            "mailer-1.30",
            "mailer-1.29",
            "mailer-1.28",
            "mailer-1.27",
            "mailer-1.26",
            "mailer-1.25",
            "mailer-1.24",
            "mailer-1.23",
            "mailer-1.23-beta-2",
            "mailer-1.23-beta-1",
            "mailer-1.22",
            "mailer-1.21",
            "mailer-1.20",
            "mailer-1.19",
            "mailer-1.18",
            "mailer-1.17",
            "mailer-1.16",
            "mailer-1.15",
            "mailer-1.14",
            "mailer-1.13",
            "mailer-1.12",
            "mailer-1.12-beta-1",
            "mailer-1.11",
            "mailer-1.10",
            "mailer-1.9",
            "mailer-1.8",
            "mailer-1.7",
            "mailer-1.6",
            "mailer-1.5",
            "mailer-1.4",
            "mailer-1.3",
            "mailer-1.2",
            "mailer-1.1",
            "mailer-1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-2252.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:36.805028525Z",
      "provider": "osv",
      "references": [
        "https://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1813"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-2252",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 434070,
  "published_at": "2020-09-16T14:15:13+00:00"
}