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CVE-2018-5142

Estado: ModificadaMedia (5.3)—

Si se solicita permiso de la API Media Capture and Streams desde documentos con URL "data:" o "blob:", las notificaciones de permiso no muestran correctamente el dominio de origen. La notificación indica "Unknown protocol" (protocolo desconocido) como el solicitante, lo que lleva a la confusión del usuario sobre qué sitio está solicitando este permiso. Esta vulnerabilidad afecta a las versiones anteriores a la 59 de Firefox.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Canonical — Ubuntu LinuxMozilla — Firefox

CWE

Referencias

JSON original (NVD)

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  "id": "CVE-2018-5142",
  "cveTags": [],
  "metrics": {
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          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
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          "baseScore": 5.3,
          "attackVector": "NETWORK",
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          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
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  "affected": [
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          "versions": [
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  "published": "2018-06-11T21:29:14.607",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "If Media Capture and Streams API permission is requested from documents with \"data:\" or \"blob:\" URLs, the permission notifications do not properly display the originating domain. The notification states \"Unknown protocol\" as the requestee, leading to user confusion about which site is asking for this permission. This vulnerability affects Firefox < 59."
    },
    {
      "lang": "es",
      "value": "Si se solicita permiso de la API Media Capture and Streams desde documentos con URL \"data:\" o \"blob:\", las notificaciones de permiso no muestran correctamente el dominio de origen. La notificación indica \"Unknown protocol\" (protocolo desconocido) como el solicitante, lo que lleva a la confusión del usuario sobre qué sitio está solicitando este permiso. Esta vulnerabilidad afecta a las versiones anteriores a la 59 de Firefox."
    }
  ],
  "lastModified": "2026-06-17T01:59:41.983",
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