CVE-2023-29201

Gravedad CVSS v3.1:

CRÍTICA

Tipo:

CWE-79 Neutralización incorrecta de la entrada durante la generación de la página web (Cross-site Scripting)

Fecha de publicación:

15/04/2023

Última modificación:

25/04/2023

Descripción

*** Pendiente de traducción *** XWiki Commons are technical libraries common to several other top level XWiki projects. The "restricted" mode of the HTML cleaner in XWiki, introduced in version 4.2-milestone-1, only escaped `` and ``-tags but neither attributes that can be used to inject scripts nor other dangerous HTML tags like ``. As a consequence, any code relying on this "restricted" mode for security is vulnerable to JavaScript injection ("cross-site scripting"/XSS). When a privileged user with programming rights visits such a comment in XWiki, the malicious JavaScript code is executed in the context of the user session. This allows server-side code execution with programming rights, impacting the confidentiality, integrity and availability of the XWiki instance. This problem has been patched in XWiki 14.6 RC1 with the introduction of a filter with allowed HTML elements and attributes that is enabled in restricted mode. There are no known workarounds apart from upgrading to a version including the fix.

Impacto

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H CVSS v3.1 Severidad y Métricas:

Puntuación base: 9.00 CRÍTICA
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Vector de acceso (AV): A través de red
Complejidad de acceso (AC): Bajo
Privilegios Requeridos (PR): Bajo
Interacción del usuario (UI): Obligatorio
Alcance (S): Modificado
Impacto a la confidencialidad (C): Alto
Impacto a la integridad (I): Alto
Impacto a la disponibilidad (A): Alto