CVE-2025-66562

TUUI is a desktop MCP client designed as a tool unitary utility integration. Prior to 1.3.4, a critical Remote Code Execution (RCE) vulnerability exists in Tuui due to an unsafe Cross-Site Scripting (XSS) flaw in the Markdown rendering component. Tuui allows the execution of arbitrary JavaScript within ECharts code blocks. Combined with an exposed IPC interface that allows spawning processes, an attacker can execute arbitrary system commands on the victim's machine simply by having them view a malicious Markdown message. This vulnerability is fixed in 1.3.4.

CVSS v3 9.6 CRITICAL

9.6^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.8 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/AI-QL/tuui/commit/f673fa5b4d76e8236c7d9506d0727875cfa79cc1	Patch
https://github.com/AI-QL/tuui/releases/tag/v1.3.4	Product Release Notes
https://github.com/AI-QL/tuui/security/advisories/GHSA-qjhq-rgmr-6c3g	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:aiql:tuui:*:*:*:*:*:*:*:*

History

25 Sep 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) TUUI es un cliente MCP de escritorio diseñado como una herramienta de integración de utilidad unitaria. Versiones anteriores a 1.3.4, existe una vulnerabilidad crítica de Ejecución Remota de Código (RCE) en Tuui debido a una falla insegura de Cross-Site Scripting (XSS) en el componente de renderizado de Markdown. Tuui permite la ejecución de JavaScript arbitrario dentro de bloques de código ECharts. Combinado con una interfaz IPC expuesta que permite la creación de procesos, un atacante puede ejecutar comandos de sistema arbitrarios en la máquina de la víctima simplemente haciendo que visualicen un mensaje Markdown malicioso. Esta vulnerabilidad se corrige en 1.3.4.

Information

Published : 2025-12-05 18:15

Updated : 2026-09-25 23:10

NVD link : CVE-2025-66562

Mitre link : CVE-2025-66562

CVE.ORG link : CVE-2025-66562

JSON object : View

Products Affected

aiql

tuui

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CWE-94

Improper Control of Generation of Code ('Code Injection')

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