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CVE-2026-39422

MaxKB has Stored XSS via ChatHeadersMiddleware

概要

MaxKB has Stored XSS via ChatHeadersMiddleware

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

MaxKB is an open-source AI assistant for enterprise. Versions 2.7.1 and below contain a Stored Cross-Site Scripting (XSS) vulnerability through the application name or icon fields when creating an application. When a victim visits the public chat interface (/ui/chat/{access_token}), the ChatHeadersMiddleware retrieves the application data and directly inserts the unescaped application name and icon into the HTML response via string replacement. This allows an attacker to execute arbitrary JavaScript in the victim's browser context. This issue has been fixed in version 2.8.0.

出典: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

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