CVE-2025-9208

Estado: AnalizadaAlta (7.5)—

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in OpenText™ Web Site Management Server allows Stored XSS. The vulnerability could execute malicious scripts on the client side when the download query parameter is removed from the file URL, allowing attackers to compromise user sessions and data.

This issue affects Web Site Management Server: 16.7.X, 16.8, 16.8.1.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/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:P/AU:N/R:U/V:D/RE:H/U:Red
Puntuación base: 7.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.21%
Percentil entre todas las CVEs puntuadas: 10
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.

ExplotaciónT1189 Drive-by Compromiseinitial access95 %
Impacto principalT1059.007 JavaScriptexecution85 %
Impacto secundarioT1078 Valid Accountsstealth · persistence · privilege escalation · initial access75 %

XSS almacenado (CWE-79) en parámetro 'download' de URL permite inyectar scripts maliciosos ejecutables en navegador (T1189). Impacto: ejecución de JavaScript (T1059.007) y potencial compromiso de sesiones de usuario (T1078). Requiere UI:P (interacción) y PR:L (privilegios de usuario autenticado).

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

User Training Restrict Web-Based Content Application Developer Guidance Active Directory Configuration User Account Management Privileged Account Management

Tecnologías afectadas (1)

Opentext — WEB Site Management Server

CWE

CWE-79

Referencias

JSON original (NVD)

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