{
  "cveId": "CVE-2020-12137",
  "url": "https://patchblox.com/security/cve/CVE-2020-12137",
  "summary": "CVE-2020-12137 is fixed in mailman on 1 platform, first by mailman 1:2.1.26-1ubuntu0.1, released April 24, 2020. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "mailman: Mailman is a program used to help manage e-mail discussion lists.\n\nSecurity Fix(es):\n\n* mailman: XSS via file attachm...",
  "description": "Mailman is a program used to help manage e-mail discussion lists.\n\nSecurity Fix(es):\n\n* mailman: XSS via file attachments in list archives (CVE-2020-12137)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Red Hat Enterprise Linux 8.3 Release Notes linked from the References section.",
  "published": "2020-04-24T06:15:00Z",
  "severity": "Moderate",
  "cvss": 6.1,
  "epss": 0.02288,
  "epssPercentile": 0.83297,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mailman",
      "release": "RHEL 8",
      "fixedVersion": "3:2.1.29-10.module\u002Bel8.3.0\u002B6860\u002B8e47d84b",
      "fix": "RHSA-2020:4667",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2020-4667",
      "released": "2020-11-04T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mailman",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "1:2.1.26-1ubuntu0.1",
      "fix": "mailman 1:2.1.26-1ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-mailman-1-2.1.26-1ubuntu0.1",
      "released": "2020-04-24T06:15:00Z"
    },
    {
      "platform": "linux",
      "product": "mailman",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "1:2.1.29-1ubuntu3.1",
      "fix": "mailman 1:2.1.29-1ubuntu3.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-mailman-1-2.1.29-1ubuntu3.1",
      "released": "2021-10-20T17:00:00Z"
    },
    {
      "platform": "linux",
      "product": "mailman",
      "release": "ol 8",
      "fixedVersion": "3:2.1.29-10.module\u002Bel8.3.0\u002B7679\u002Bd7dcf94b",
      "fix": "ELSA-2020-4667",
      "url": "https://patchblox.com/security/fix/linux/elsa-2020-4667",
      "released": "2020-11-10T00:00:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}