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Stored Cross-Site Scripting (XSS) vulnerability in Chaindesk thru 2025-05-26 in its agent chat component. An attacker can achieve arbitrary client-side script execution by crafting an AI agent whose system prompt instructs the underlying Large Language Model (LLM) to embed malicious script payloads (e.g., SVG-based XSS) into its chat responses. When a user interacts with such a malicious agent or accesses a direct link to a conversation containing an XSS payload, the script executes in the user's browser. Successful exploitation can lead to the theft of sensitive information, such as JWT session tokens, potentially resulting in account hijacking.

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Chaindesk 跨站脚本漏洞

Chaindesk是法国Chaindesk公司的一个用于构建和部署基于私有数据的 AI 聊天机器人。 Chaindesk 2025-05-26及之前版本存在跨站脚本漏洞，该漏洞源于AI代理的系统提示可嵌入恶意脚本载荷，导致存储型跨站脚本攻击。

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