CVE-2025-58768: Thinkinai Deepchat

Critical severity, CVSS 9.6. EPSS: 0.6% chance of exploitation in the next 30 days.

DeepChat is a smart assistant uses artificial intelligence. Prior to version 0.3.5, in the Mermaid chart rendering component, there is a risky operation of directly using `innerHTML` to set user content. Therefore, any malicious content rendered via Mermaid will directly trigger the exploit chain, leading to command execution. This vulnerability is primarily caused by a failure to fully address the existing XSS issue in the project, leading to another exploit chain. The exploit chain is consistent with the report GHSA-hqr4-4gfc-5p2j, executing arbitrary JavaScript code via XSS and arbitrary commands via exposed IPC. Version 0.3.5 contains an updated fix.

Affected products

• Thinkinai Deepchat: before 0.3.5 (fixed in 0.3.5)

Published 2025-09-09. Last modified 2026-06-17.