{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "jupyterlite-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2024-09-06T19:51:19Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nThe vulnerability depends on user interaction by opening a malicious notebook with Markdown cells, or Markdown file using JupyterLab preview feature.\n\nA malicious user can access any data accessible from JupyterLite and perform arbitrary actions in JupyterLite environment.\n\n### Patches\n\nJupyterLite 0.4.1 was patched.\n\n### Workarounds\n\nThere is no workaround for the underlying DOM Clobbering susceptibility. However, select plugins can be disabled on deployments which cannot update in a timely fashion to minimise the risk. These are:\n- `@jupyterlab/mathjax-extension:plugin` - users will loose ability to preview mathematical equations \n- `@jupyterlab/markdownviewer-extension:plugin` - users will loose ability to open Markdown previews\n- `@jupyterlab/mathjax2-extension:plugin` (if installed with optional `jupyterlab-mathjax2` package) - an older version of the mathjax plugin for JupyterLab 4.x\n\nTo disable these extensions populate the `disabledExtensions` key in `jupyter-config-data` stanza of `jupyter-lite.json` as documented on https://jupyterlite.readthedocs.io/en/stable/howto/configure/config_files.html#jupyter-lite-json\n\n```json\n{\n  \"jupyter-lite-schema-version\": 0,\n  \"jupyter-config-data\": {\n    \"appName\": \"My JupyterLite App\",\n    \"disabledExtensions\": [\n      \"@jupyterlab/markdownviewer-extension:plugin\",\n      \"@jupyterlab/mathjax-extension:plugin\",\n      \"@jupyterlab/mathjax2-extension:plugin\"\n    ]\n  }\n}\n```\n\nTo confirm that the plugins were disabled manual inspection of the built page is required.\n\n### References\n\nUpstream advisory: https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-9q39-rmj3-p4r2\n\n### Notes\n\nThis change has a potential to break rendering of some markdown. There is a setting in Sanitizer which allows to revert to the previous sanitizer settings (`allowNamedProperties`).",
  "id": "GHSA-gj55-2xf9-67rq",
  "modified": "2024-11-18T16:27:10Z",
  "published": "2024-09-06T19:51:19Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/jupyterlab/jupyterlab/security/advisories/GHSA-9q39-rmj3-p4r2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jupyterlite/jupyterlite/security/advisories/GHSA-gj55-2xf9-67rq"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/jupyterlite/jupyterlite"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "HTML injection in JupyterLite leading to DOM Clobbering"
}