{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "2026.1.6"
              },
              {
                "introduced": "2026.5.0-latest"
              },
              {
                "fixed": "2026.5.2"
              },
              {
                "introduced": "2026.6.0-latest"
              },
              {
                "fixed": "2026.6.1"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "introduced": "640840d818f4ee9375829ece0ef452923bb0c012"
            },
            {
              "introduced": "06d03da34c4ed09ea59f917f045ba250d2b6320d"
            },
            {
              "fixed": "94190ccb5176eb4ab1f2b509fcecc3fc682dadae"
            },
            {
              "fixed": "3a87be49d621faddf5cea3f6a090adc9b7cbb7e8"
            },
            {
              "fixed": "b6419ddb26f109092cdc5fdc4b2624fe95a5e8d4"
            },
            {
              "fixed": "32920affe4ad97b461ca2ae2f664c5fefc374baf"
            },
            {
              "fixed": "3fb1e8ead0d4f48d2cf55c8110825c7e8a6a45f5"
            },
            {
              "fixed": "7eb35d076ab9b6a612e86182336ce9787ce402ea"
            },
            {
              "fixed": "9633b8ecaf5a99f0407f5261b9bd1a05f7dac529"
            }
          ],
          "repo": "https://github.com/discourse/discourse",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-wg48-qxjc-f459"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-79"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72730.json"
  },
  "details": "Discourse is an open-source discussion platform. Prior to 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0, the Rich Text Editor rendered a chat-transcript username as HTML, allowing stored cross-site scripting. This issue is fixed in versions 2026.1.6, 2026.5.2, 2026.6.1, and 2026.7.0.",
  "id": "CVE-2026-72730",
  "modified": "2026-08-12T03:51:16.755293728Z",
  "published": "2026-08-10T16:17:04.710Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72730.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/discourse/discourse/security/advisories/GHSA-wg48-qxjc-f459"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72730"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/32920affe4ad97b461ca2ae2f664c5fefc374baf"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/3fb1e8ead0d4f48d2cf55c8110825c7e8a6a45f5"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/7eb35d076ab9b6a612e86182336ce9787ce402ea"
    },
    {
      "type": "FIX",
      "url": "https://github.com/discourse/discourse/commit/9633b8ecaf5a99f0407f5261b9bd1a05f7dac529"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Discourse: Stored XSS chat-transcript username unescaped in Rich Text Editor"
}