GSD-2022-40276

Vulnerability from gsd - Updated: 2023-12-13 01:19
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.
Aliases
Aliases
CVE-2022-40276
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{
  "GSD": {
    "alias": "CVE-2022-40276",
    "id": "GSD-2022-40276"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "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.",
      "id": "GSD-2022-40276",
      "modified": "2023-12-13T01:19:31.038315Z",
      "schema_version": "1.4.0"
    }
  },
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        "ID": "CVE-2022-40276",
        "STATE": "PUBLIC"
      },
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            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Zettlr",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "=",
                          "version_value": "2.3.0"
                        }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "Insecure or unset HTTP headers - Content-Security-Policy"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://github.com/Zettlr/Zettlr",
            "refsource": "MISC",
            "url": "https://github.com/Zettlr/Zettlr"
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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              "description": [
                {
                  "lang": "en",
                  "value": "CWE-20"
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      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 1.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2022-11-05T01:26Z",
      "publishedDate": "2022-11-03T20:15Z"
    }
  }
}



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