CVE-2026-39423

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain an Eval Injection vulnerability in the Markdown rendering engine that allows any user capable of interacting with the AI chat interface to execute arbitrary JavaScript in the browsers of other users, including administrators, resulting in Stored Cross-Site Scripting (XSS). This issue has been fixed in version 2.8.0.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/1Panel-dev/MaxKB/commit/34fb95bde9574c5b3a734ab00c7f29b9e7d32669	Patch
https://github.com/1Panel-dev/MaxKB/releases/tag/v2.8.0	Release Notes
https://github.com/1Panel-dev/MaxKB/security/advisories/GHSA-462x-99gf-mp79	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:maxkb:maxkb:*:*:*:*:-:*:*:*

History

26 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) MaxKB es un asistente de IA de código abierto para empresas. Las versiones 2.7.1 e inferiores contienen una vulnerabilidad de inyección Eval en el motor de renderizado de Markdown que permite a cualquier usuario capaz de interactuar con la interfaz de chat de IA ejecutar JavaScript arbitrario en los navegadores de otros usuarios, incluidos los administradores, lo que resulta en cross-site scripting almacenado (XSS). Este problema ha sido solucionado en la versión 2.8.0.

Information

Published : 2026-04-14 01:16

Updated : 2026-10-26 21:10

NVD link : CVE-2026-39423

Mitre link : CVE-2026-39423

CVE.ORG link : CVE-2026-39423

JSON object : View

Products Affected

maxkb

maxkb

CWE

CWE-79

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

CWE-95

Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')

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