CVE-2023-4581

Estado: ModificadaMedia (4.3)—

Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.

CVSS

Versión: 3.1
Vector: CVSS:3.1/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: 0.57%
Percentil entre todas las CVEs puntuadas: 46
Fecha de la puntuación: 7/10/2026

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 (3)

Mozilla — Firefox Mozilla — Firefox ESR Mozilla — Thunderbird

CWE

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2023-4581",
  "cveTags": [],
  "metrics": {
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        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-4581",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-09-26T16:02:47.469373Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/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": [
    {
      "source": "security@mozilla.org",
      "affectedData": [
        {
          "vendor": "Mozilla",
          "product": "Firefox",
          "versions": [
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              "version": "unspecified",
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              "versionType": "custom"
            }
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        },
        {
          "vendor": "Mozilla",
          "product": "Firefox ESR",
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              "version": "unspecified",
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        },
        {
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              "status": "affected",
              "version": "unspecified",
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        {
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              "status": "affected",
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  "published": "2023-09-11T09:15:09.550",
  "references": [
    {
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1843758",
      "tags": [
        "Issue Tracking",
        "Permissions Required"
      ],
      "source": "security@mozilla.org"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2023-34/",
      "tags": [
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      "source": "security@mozilla.org"
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      "tags": [
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      "url": "https://www.mozilla.org/security/advisories/mfsa2023-38/",
      "tags": [
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      "tags": [
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      "tags": [
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      "tags": [
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      "tags": [
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.mozilla.org/security/advisories/mfsa2023-38/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
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  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2."
    },
    {
      "lang": "es",
      "value": "Los archivos complementarios `.xll` de Excel no tenían una entrada en la lista de bloqueo ejecutable de Firefox, lo que permitía descargarlos sin ninguna advertencia sobre su daño potencial. Esta vulnerabilidad afecta a Firefox &lt; 117, Firefox ESR &lt; 102.15, Firefox ESR &lt; 115.2 y Thunderbird &lt; 115.2."
    }
  ],
  "lastModified": "2026-06-17T06:38:08.800",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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              "versionEndExcluding": "117.0"
            },
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              "vulnerable": true,
              "matchCriteriaId": "98C163DC-8C12-43DA-8B27-64FBD3120547",
              "versionEndExcluding": "115.2",
              "versionStartIncluding": "115.0"
            },
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              "matchCriteriaId": "066F8E6C-E629-4F70-8925-CB5C901E3A07",
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          "operator": "OR"
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  "sourceIdentifier": "security@mozilla.org"
}