CVE-2018-18511

Estado: ModificadaMedia (4.3)—
Las imágenes de origen cruzado pueden leerse desde un elemento Canvas en violación de la política del mismo origen usando el método transferFromImageBitmap. * Nota: Esto solo afecta a Firefox versión 65. Las versiones anteriores no están afectadas. *. Esta vulnerabilidad afecta a Firefox < a la versión 65.0.1.
CVSS

Versión: 3.0
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Puntuación base: 4.3
Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.87%
Percentil entre todas las CVEs puntuadas: 79
Fecha de la puntuación: 10/10/2026
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 (1)

Mozilla — Firefox
CWE

CWE-200
Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-18511",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
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          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
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      "affectedData": [
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          "versions": [
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              "version": "unspecified",
              "lessThan": "65.0.1",
              "versionType": "custom"
            }
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  "published": "2019-04-26T17:29:00.447",
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  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-origin images can be read from a canvas element in violation of the same-origin policy using the transferFromImageBitmap method. *Note: This only affects Firefox 65. Previous versions are unaffected.*. This vulnerability affects Firefox < 65.0.1."
    },
    {
      "lang": "es",
      "value": "Las imágenes de origen cruzado pueden leerse desde un elemento Canvas en violación de la política del mismo origen usando el método transferFromImageBitmap. * Nota: Esto solo afecta a Firefox versión 65. Las versiones anteriores no están afectadas. *. Esta vulnerabilidad afecta a Firefox < a la versión 65.0.1."
    }
  ],
  "lastModified": "2026-06-17T01:47:26.263",
  "configurations": [
    {
      "nodes": [
        {
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  "sourceIdentifier": "security@mozilla.org"
}