{
  "cveId": "CVE-2023-23604",
  "url": "https://patchblox.com/security/cve/CVE-2023-23604",
  "summary": "CVE-2023-23604 is fixed in 5 products on 2 platforms, first by Mozilla Firefox (en-US) 109.0, released January 17, 2023. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "Creation of duplicate SystemPrincipal from less secure contexts",
  "description": "A duplicate \u0060SystemPrincipal\u0060 object could be created when parsing a non-system html document via \u0060DOMParser::ParseFromSafeString\u0060. This could have lead to bypassing web security checks. This vulnerability affects Firefox \u003C 109.",
  "published": "2023-01-17T16:00:00Z",
  "severity": "Medium",
  "cvss": 6.5,
  "cwe": "CWE-863: Incorrect Authorization",
  "epss": 0.00463,
  "epssPercentile": 0.40379,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://nvd.nist.gov/vuln/detail/CVE-2023-23604",
  "fixes": [
    {
      "platform": "windows-app",
      "product": "Mozilla Firefox (en-US)",
      "fixedVersion": "109.0",
      "fix": "Mozilla Firefox (en-US) 109.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox-109.0",
      "released": "2023-01-17T00:00:00Z"
    },
    {
      "platform": "windows-app",
      "product": "Mozilla Firefox ESR (en-US)",
      "fixedVersion": "115.4.0",
      "fix": "Mozilla Firefox ESR (en-US) 115.4.0",
      "url": "https://patchblox.com/security/fix/windows-app/mozilla.firefox.esr-115.4.0",
      "released": "2023-10-17T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "firefox 109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-109.0-build2-0ubuntu0.18.04.1",
      "released": "2023-01-17T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox 109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-109.0-build2-0ubuntu0.20.04.1",
      "released": "2023-01-17T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "firefox-geckodriver 109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-geckodriver-109.0-build2-0ubuntu0.18.04.1",
      "released": "2023-01-17T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-geckodriver",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox-geckodriver 109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-geckodriver-109.0-build2-0ubuntu0.20.04.1",
      "released": "2023-01-17T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "fix": "firefox-mozsymbols 109.0\u002Bbuild2-0ubuntu0.18.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-firefox-mozsymbols-109.0-build2-0ubuntu0.18.04.1",
      "released": "2023-01-17T16:00:00Z"
    },
    {
      "platform": "linux",
      "product": "firefox-mozsymbols",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "fix": "firefox-mozsymbols 109.0\u002Bbuild2-0ubuntu0.20.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-firefox-mozsymbols-109.0-build2-0ubuntu0.20.04.1",
      "released": "2023-01-17T16:00:00Z"
    }
  ],
  "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"
  }
}