{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "72d5e54e3eb3cd442d23dc097158fe81f1efda82"
            },
            {
              "fixed": "e2a2fdc5500192c603ae888a67dca0affdf00d7c"
            }
          ],
          "repo": "https://github.com/bigbluebutton/bigbluebutton",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-hwv2-5pf5-hr87"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31064.json"
  },
  "details": "BigBlueButton is an open source web conferencing system. Users in meetings with private chat enabled are vulnerable to a cross site scripting attack in affected versions. The attack occurs when the attacker (with xss in the name) starts a chat. in the victim's client the JavaScript will be executed. This issue has been addressed in version 2.4.8 and 2.5.0. There are no known workarounds for this issue.",
  "id": "CVE-2022-31064",
  "modified": "2026-04-01T23:09:48.820373041Z",
  "published": "2022-06-27T19:50:14Z",
  "references": [
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/167682/BigBlueButton-2.3-2.4.7-Cross-Site-Scripting.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31064.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-hwv2-5pf5-hr87"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-31064"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/15067"
    },
    {
      "type": "FIX",
      "url": "https://github.com/bigbluebutton/bigbluebutton/pull/15090"
    },
    {
      "type": "ARTICLE",
      "url": "http://seclists.org/fulldisclosure/2022/Jun/52"
    },
    {
      "type": "ARTICLE",
      "url": "https://pentests.nl/pentest-blog/stored-xss-in-bigbluebutton/"
    }
  ],
  "schema_version": "1.7.3",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Cross site scripting in username that will trigger by sending chat"
}