CVE-2025-66474

Estado: AnalizadaAlta (8.7)—

XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Versions 16.10.9 and below, 17.0.0-rc-1 through 17.4.2 and 17.5.0-rc-1 through 17.5.0 have insufficient protection against {{/html}} injection, which attackers can exploit through RCE. Any user who can edit their own profile or any other document can execute arbitrary script macros, including Groovy and Python macros, which enable remote code execution as well as unrestricted read and write access to all wiki contents. This issue is fixed in versions 16.10.10, 17.4.3 and 17.6.0-rc-1.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Puntuación base: 8.7

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 1.02%
Percentil entre todas las CVEs puntuadas: 62
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.

ExplotaciónT1210 Exploitation of Remote Serviceslateral movement85 %
Impacto principalT1059 Command and Scripting Interpreterexecution90 %
Impacto secundarioT1005 Data from Local Systemcollection85 %
Impacto secundarioT1565 Data Manipulationimpact80 %

Inyección {{/html}} en XWiki requiere PR:L; ejecución de macros Groovy/Python (T1059) con acceso total de lectura y escritura (T1005, T1565) en contenido wiki tras autenticarse.

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 Network Segmentation Disable or Remove Feature or Program Vulnerability Scanning Threat Intelligence Program Restrict Web-Based Content

Tecnologías afectadas (1)

Xwiki — Xwiki-rendering

CWE

CWE-95
CWE-94

Referencias

JSON original (NVD)

Mostrar

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      "value": "XWiki Rendering es un sistema de renderizado genérico que convierte la entrada textual en una sintaxis dada (sintaxis wiki, HTML, etc.) en otra sintaxis (XHTML, etc.). Las versiones 16.10.9 e inferiores, 17.0.0-rc-1 hasta 17.4.2 y 17.5.0-rc-1 hasta 17.5.0 tienen protección insuficiente contra la inyección de {{/html}}, que los atacantes pueden exploit a través de RCE. Cualquier usuario que pueda editar su propio perfil o cualquier otro documento puede ejecutar macros de script arbitrarias, incluyendo macros Groovy y Python, que permiten la ejecución remota de código, así como acceso de lectura y escritura sin restricciones a todos los contenidos wiki. Este problema está solucionado en las versiones 16.10.10, 17.4.3 y 17.6.0-rc-1."
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