CVE-2025-55733: critical vulnerability in ThinkInAIXYZ deepchat
DeepChat One-click Remote Code Execution through Custom URL Handling
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 9.7epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Affected products
ThinkInAIXYZ · deepchatRelated CVEs — ThinkInAIXYZ deepchat
In the same product, most dangerous first.
CVE-2025-66222CRITICALDeepChat Cross-Site Scripting(XSS) escalate to Remote Code Execution(RCE)EPSS 0.7%CVE-2025-67744CRITICALMermaid XSS vulnerability leads to Remote Code ExecutionEPSS 0.6%CVE-2025-58768CRITICALDeepChat's Mermaid rendering has XSS leading to RCEEPSS 0.6%CVE-2025-66481CRITICALDeepChat's Incomplete XSS Fix Allows RCE through Mermaid ContentEPSS 0.6%CVE-2026-43899CRITICALDeepChat: Incomplete Fix for CVE-2025-55733 leads to Remote Code Execution via Markdown Links bypassing `isValidExternalUrl`EPSS 0.4%CVE-2026-43900CRITICALDeepChat: Persistent DOM XSS via HTML Entity Encoding in `<antArtifact>` SVG Rendering (Bypass of `svgSanitizer.ts`)EPSS 0.4%