{
  "cveId": "CVE-2021-44858",
  "url": "https://patchblox.com/security/cve/CVE-2021-44858",
  "summary": "CVE-2021-44858 is fixed in mediawiki on 1 platform, first by DEBIAN-CVE-2021-44858, released December 20, 2021. It is not reported as exploited. Patch Radar priority: High.",
  "title": "mediawiki: An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1",
  "description": "An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=edit\u0026undo= followed by action=mcrundo and action=mcrrestore to view private pages on a private wiki that has at least one page set in $wgWhitelistRead.",
  "published": "2021-12-20T09:15:06Z",
  "severity": "high",
  "cvss": 7.5,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "epss": 0.01371,
  "epssPercentile": 0.72103,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "mediawiki",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:1.35.5-1",
      "fix": "DEBIAN-CVE-2021-44858",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-44858",
      "released": "2021-12-20T09:15:06Z"
    },
    {
      "platform": "linux",
      "product": "mediawiki",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:1.35.5-1",
      "fix": "DEBIAN-CVE-2021-44858",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-44858",
      "released": "2021-12-20T09:15:06Z"
    },
    {
      "platform": "linux",
      "product": "mediawiki",
      "release": "Debian 14",
      "fixedVersion": "1:1.35.5-1",
      "fix": "DEBIAN-CVE-2021-44858",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2021-44858",
      "released": "2021-12-20T09:15:06Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}