Unrated severityNVD Advisory· Published Dec 3, 2025· Updated Dec 3, 2025
DeepChat Cross-Site Scripting(XSS) escalate to Remote Code Execution(RCE)
CVE-2025-66222
Description
DeepChat is a smart assistant uses artificial intelligence. In 0.5.0 and earlier, there is a Stored Cross-Site Scripting (XSS) vulnerability in the Mermaid diagram renderer allows an attacker to execute arbitrary JavaScript within the application context. By leveraging the exposed Electron IPC bridge, this XSS can be escalated to Remote Code Execution (RCE) by registering and starting a malicious MCP (Model Context Protocol) server.
Affected products
1- Range: < 0.5.0
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
2- github.com/ThinkInAIXYZ/deepchat/commit/371ca7b42e3685aee6e3f0c61e85277ed1ff4db7mitrex_refsource_MISC
- github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-v8v5-c872-mf8rmitrex_refsource_CONFIRM
News mentions
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