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CVE-2024-4769

Estado: AnalizadaMedia (5.9)—

Al importar recursos utilizando Web Workers, los mensajes de error distinguirían la diferencia entre respuestas `aplicación/javascript` y respuestas sin script. Se podría haber abusado de esto para aprender información de origen cruzado. Esta vulnerabilidad afecta a Firefox < 126, Firefox ESR < 115.11 y Thunderbird < 115.11.

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 (3)

Debian — Debian LinuxMozilla — FirefoxMozilla — Thunderbird

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2024-4769",
  "cveTags": [],
  "metrics": {
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        "ssvcData": {
          "id": "CVE-2024-4769",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
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          "version": "2.0.3",
          "timestamp": "2024-05-15T15:22:42.602903Z"
        }
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        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
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          "lang": "en",
          "value": "CWE-351"
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      "lang": "en",
      "value": "When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses.  This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11."
    },
    {
      "lang": "es",
      "value": "Al importar recursos utilizando Web Workers, los mensajes de error distinguirían la diferencia entre respuestas `aplicación/javascript` y respuestas sin script. Se podría haber abusado de esto para aprender información de origen cruzado. Esta vulnerabilidad afecta a Firefox &lt; 126, Firefox ESR &lt; 115.11 y Thunderbird &lt; 115.11."
    }
  ],
  "lastModified": "2026-06-17T08:02:51.963",
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}