Dive — Xss (CVE-2025-66580)
Date: 2025-12
Affected: openagentplatform/dive
Attack vector: xss
Category: vulnerability-disclosure
Severity: Critical
CVE: CVE-2025-66580
CWE: CWE-79
CWE-94
CVSS: 9.6 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H)

Dive is an open-source MCP Host Desktop Application that enables integration with function-calling LLMs. A critical Stored Cross-Site Scripting (XSS) vulnerability exists in versions prior to 0.11.1 in the Mermaid diagram rendering component. The application allows the execution of arbitrary JavaScript via `javascript:`. An attacker can exploit this to inject a malicious Model Context Protocol (MCP) server configuration, leading to Remote Code Execution (RCE) on the victim's machine when the node is clicked. Version 0.11.1 fixes the issue.


Mitigations:

Architectural layers (MAESTRO):