{
  "schema_version": "1.4.0",
  "id": "GHSA-gq8w-3h98-m48x",
  "modified": "2025-05-02T21:30:36Z",
  "published": "2022-11-04T12:00:25Z",
  "aliases": [
    "CVE-2022-40276"
  ],
  "details": "Zettlr version 2.3.0 allows an external attacker to remotely obtain arbitrary local files on any client that attempts to view a malicious markdown file through Zettlr. This is possible because the application does not have a CSP policy (or at least not strict enough) and/or does not properly validate the contents of markdown files before rendering them.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40276"
    },
    {
      "type": "WEB",
      "url": "https://fluidattacks.com/advisories/avicii"
    },
    {
      "type": "WEB",
      "url": "https://github.com/Zettlr/Zettlr"
    }
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "severity": "MODERATE",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-11-03T20:15:00Z"
  }
}