CVE-2025-4279

Estado: AplazadaAlta (8.8)—

The External image replace plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'external_image_replace_get_posts::replace_post' function in all versions up to, and including, 1.0.8. This makes it possible for authenticated attackers, with contributor-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 8.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.79%
Percentil entre todas las CVEs puntuadas: 55
Fecha de la puntuación: 5/10/2026

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).

🎯 Técnicas ATT&CK

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

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement75 %
Impacto principalT1505.003 Web Shellpersistence85 %
Impacto secundarioT1059 Command and Scripting Interpreterexecution70 %

AV:N con PR:L requiere acceso a servicios remotos autenticados (T1210). CWE-434 (arbitrary file upload) sin validación permite web shell (T1505.003) y ejecución de código remoto (T1059) en WordPress.

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

Disable or Remove Feature or Program Privileged Account Management Vulnerability Scanning User Account Management Threat Intelligence Program Restrict Web-Based Content

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

External Image Replace — External Image Replace^AI

CWE

CWE-434

Referencias

JSON original (NVD)

Mostrar

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          "options": [
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  "published": "2025-05-05T19:15:57.477",
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    {
      "url": "https://plugins.trac.wordpress.org/browser/external-image-replace/tags/1.0.8/class.php#L87",
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      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ee1624fd-d98b-4953-99dc-a952dda48aa1?source=cve",
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    },
    {
      "lang": "es",
      "value": "El complemento External image replace para WordPress es vulnerable a la carga de archivos arbitrarios debido a la falta de validación del tipo de archivo en la función 'external_image_replace_get_posts::replace_post' en todas las versiones hasta la 1.0.8 incluida. Esto permite que atacantes autenticados, con permisos de colaborador o superiores, carguen archivos arbitrarios en el servidor del sitio afectado, lo que podría posibilitar la ejecución remota de código."
    }
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  "lastModified": "2026-06-17T09:32:55.803",
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