{
  "id": "CVE-2021-43541",
  "sourceIdentifier": "security@mozilla.org",
  "published": "2021-12-08T22:15:09.840",
  "lastModified": "2022-12-09T15:59:02.477",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "When invoking protocol handlers for external protocols, a supplied parameter URL containing spaces was not properly escaped. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95."
    },
    {
      "lang": "es",
      "value": "Cuando son invocados manejadores de protocolo para protocolos externos, una URL de par\u00e1metro suministrada que conten\u00eda espacios no se escapaba correctamente. Esta vulnerabilidad afecta a Thunderbird versiones anteriores a 91.4.0, Firefox ESR versiones anteriores a 91.4.0 y Firefox versiones anteriores a 95"
    }
  ],
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          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "HIGH",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM"
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        "exploitabilityScore": 2.8,
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          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "NONE",
          "baseScore": 4.3
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        "obtainAllPrivilege": false,
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      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1696685",
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