CVE-2026-18391

Estado: AplazadaCrítica (9.8)—

The WooCommerce Subscriptions WordPress plugin before 9.1.0 does not validate user input before unserializing it on stores with High-Performance Order Storage enabled, leading to a PHP Object Injection issue which unauthenticated users can escalate to Remote Code Execution via a gadget chain present in the bundled dependencies.

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 9.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.96%
Percentil entre todas las CVEs puntuadas: 60
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.

ExplotaciónT1190 Exploit Public-Facing Applicationinitial access92 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1505.003 Web Shellpersistence85 %

AV:N/AC:L/PR:N/UI:N indica acceso remoto sin autenticación (T1190). Deserialización insegura de PHP con gadget chain permite ejecución de código remoto (T1059) y potencial web shell en WordPress (T1505.003).

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

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

Tecnologías afectadas (1)

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

Woocommerce — Subscriptions^AI

CWE

CWE-434

Referencias

https://wpscan.com/vulnerability/191f76cf-e5bd-4a37-ac1c-9187cea2aa27/

JSON original (NVD)

Mostrar

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          "timestamp": "2026-08-12T19:39:49.283713Z"
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      }
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  "affected": [
    {
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      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "WooCommerce Subscriptions",
          "versions": [
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              "version": "4.7.0",
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  "lastModified": "2026-08-26T16:30:52.723",
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