CVE-2025-9890

Estado: AplazadaAlta (8.8)—

The Theme Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.0. This is due to missing or incorrect nonce validation on the 'theme_editor_theme' page. This makes it possible for unauthenticated attackers to achieve remote code execution via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

CVSS

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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.40%
Percentil entre todas las CVEs puntuadas: 32
Fecha de la puntuación: 6/10/2026

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.

ExplotaciónT1203 Exploitation for Client Executionexecution90 %
Impacto principalT1059 Command and Scripting Interpreterexecution85 %
Impacto secundarioT1078.001 Default Accountsstealth · persistence · privilege escalation · initial access75 %

CSRF (CWE-352) que requiere interacción del usuario (UI:R) para engañar a administrador; logra ejecución de código remoto en el servidor WordPress mediante editor de temas sin validación de nonce.

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

Restrict Web-Based Content Privileged Account Management Password Policies Multi-factor Authentication Limit Software Installation Execution Prevention

Tecnologías afectadas (1)

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

Themeeditor — Theme Editor^AI

CWE

CWE-352

Referencias

JSON original (NVD)

Mostrar

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          "id": "CVE-2025-9890",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-20T17:08:22.305660Z"
        }
      }
    ],
    "cvssMetricV31": [
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          "attackVector": "NETWORK",
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          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 2.8
      }
    ]
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  "affected": [
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      "source": "security@wordfence.com",
      "affectedData": [
        {
          "vendor": "mndpsingh287",
          "product": "Theme Editor",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "versionType": "semver",
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  "published": "2025-10-18T09:15:34.687",
  "references": [
    {
      "url": "https://plugins.trac.wordpress.org/browser/theme-editor/trunk/app/controller/theme_controller.php#L87",
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    },
    {
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3379404%40theme-editor&new=3379404%40theme-editor&sfp_email=&sfph_mail=",
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      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/77189684-b794-41a0-8fc0-3320032c2f69?source=cve",
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  "weaknesses": [
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      "source": "security@wordfence.com",
      "description": [
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  "descriptions": [
    {
      "lang": "en",
      "value": "The Theme Editor plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.0. This is due to missing or incorrect nonce validation on the 'theme_editor_theme' page. This makes it possible for unauthenticated attackers to achieve remote code execution via a forged request granted they can trick a site administrator into performing an action such as clicking on a link."
    },
    {
      "lang": "es",
      "value": "El plugin Theme Editor para WordPress es vulnerable a Cross-Site Request Forgery en todas las versiones hasta la 3.0, inclusive. Esto se debe a una validación de nonce ausente o incorrecta en la página 'theme_editor_theme'. Esto hace posible que atacantes no autenticados logren la ejecución remota de código a través de una petición falsificada, siempre que puedan engañar a un administrador del sitio para que realice una acción como hacer clic en un enlace."
    }
  ],
  "lastModified": "2026-09-26T00:10:00.127",
  "sourceIdentifier": "security@wordfence.com"
}