ghsa-wgfq-5c99-wv2w
Vulnerability from github
Published
2022-05-24 17:05
Modified
2022-05-24 17:05
Details

When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer does not escape < and > characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node's innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-17022"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-08T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "When pasting a \u0026lt;style\u0026gt; tag from the clipboard into a rich text editor, the CSS sanitizer does not escape \u0026lt; and \u0026gt; characters. Because the resulting string is pasted directly into the text node of the element this does not result in a direct injection into the webpage; however, if a webpage subsequently copies the node\u0027s innerHTML, assigning it to another innerHTML, this would result in an XSS vulnerability. Two WYSIWYG editors were identified with this behavior, more may exist. This vulnerability affects Firefox ESR \u003c 68.4 and Firefox \u003c 72.",
  "id": "GHSA-wgfq-5c99-wv2w",
  "modified": "2022-05-24T17:05:50Z",
  "published": "2022-05-24T17:05:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-17022"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2020-02"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2020-01"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4603"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4600"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4241-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4234-1"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2020/Jan/26"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2020/Jan/18"
    },
    {
      "type": "WEB",
      "url": "https://seclists.org/bugtraq/2020/Jan/12"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1602843"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0127"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0123"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0120"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0111"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0086"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2020:0085"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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