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CVE-2021-4382

Estado: ModificadaAlta (8.8)—

El plugin Recently para WordPress es vulnerable a la subida de archivos arbitrarios debido a la falta de validación del tipo de archivo en la función fetch_external_image() en las versiones hasta la 3.0.4 inclusive. Esto permite que atacantes autenticados suban archivos arbitrarios al servidor del sitio afectado, lo que podría hacer posible la ejecución remota de código.

Traducción automática del texto original de NVD (en inglés).

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 (1)

CWE

Referencias

JSON original (NVD)

Mostrar
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          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
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              "automatable": "no"
            },
            {
              "technicalImpact": "total"
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          "version": "2.0.3",
          "timestamp": "2024-12-23T16:00:36.972832Z"
        }
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
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        "exploitabilityScore": 2.8
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        "source": "nvd@nist.gov",
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      "source": "security@wordfence.com"
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      "source": "security@wordfence.com"
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      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f8297149-2de3-4e49-80f9-6ea59dea6bce?source=cve",
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      "tags": [
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      "source": "af854a3a-2127-422b-91ae-364da2661108"
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "type": "Secondary",
      "source": "security@wordfence.com",
      "description": [
        {
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          "value": "CWE-434"
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    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
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          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Recently plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the fetch_external_image() function in versions up to, and including, 3.0.4. This makes it possible for authenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible."
    }
  ],
  "lastModified": "2026-06-17T04:19:37.060",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
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  ],
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}