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CVE-2020-36849

Estado: AnalizadaCrítica (9.8)—

The AIT CSV import/export plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php file in versions up to, and including, 3.0.3. This makes it possible for unauthorized attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vulnerabilidad en plugin WordPress accesible sin autenticación (PR:N) ni interacción (UI:N) que permite cargar ficheros arbitrarios sin validación (CWE-434), permitiendo web shell y RCE en servidor remoto.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Tecnologías afectadas (1)

CWE

Referencias

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  "id": "CVE-2020-36849",
  "cveTags": [],
  "metrics": {
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      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2020-36849",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-14T14:12:05.053402Z"
        }
      }
    ],
    "cvssMetricV31": [
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        "cvssData": {
          "scope": "UNCHANGED",
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          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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        "impactScore": 5.9,
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      }
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  "affected": [
    {
      "source": "security@wordfence.com",
      "affectedData": [
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          "vendor": "AIT Themes",
          "product": "AIT CSV import/export",
          "versions": [
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              "status": "affected",
              "version": "0",
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  "published": "2025-07-12T12:15:25.570",
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      "tags": [
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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      "source": "security@wordfence.com",
      "description": [
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          "value": "CWE-434"
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      "value": "The AIT CSV import/export plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php file in versions up to, and including, 3.0.3. This makes it possible for unauthorized attackers to upload arbitrary files on the affected sites server which may make remote code execution possible."
    },
    {
      "lang": "es",
      "value": "El complemento AIT CSV import/export para WordPress es vulnerable a la carga de archivos arbitrarios debido a la falta de validación del tipo de archivo en el archivo /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php en versiones hasta la 3.0.3 incluida. Esto permite que atacantes no autorizados carguen archivos arbitrarios en el servidor de los sitios afectados, lo que podría posibilitar la ejecución remota de código."
    }
  ],
  "lastModified": "2026-06-17T03:16:19.520",
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