What’s Vulnerable › Vulnerabilities

CVE-2025-55733: DeepChat One-click Remote Code Execution through Custom URL Handling

• Severity: critical (CVSS 9.6 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2025-08-19 · updated 2026-06-17
• Weakness: CWE-94

Description

DeepChat is a smart assistant that connects powerful AI to your personal world. DeepChat before 0.3.1 has a one-click remote code execution vulnerability. An attacker can exploit this vulnerability by embedding a specially crafted deepchat: URL on any website, including a malicious one they control. When a victim visits such a site or clicks on the link, the browser triggers the app’s custom URL handler (deepchat:), causing the DeepChat application to launch and process the URL, leading to remote code execution on the victim’s machine. This vulnerability is fixed in 0.3.1.

Affected products

• ThinkInAIXYZ deepchat: 0.3.0

References

• https://github.com/ThinkInAIXYZ/deepchat/commit/a0ff6f362e01ddceb7fd42d0af0b28b6184fb4d2
• https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-hqr4-4gfc-5p2j
• https://github.com/ThinkInAIXYZ/deepchat/security/advisories/GHSA-hqr4-4gfc-5p2j

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