CVE-2025-66580 | THREATINT

Description

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.

PUBLISHED Reserved 2025-12-04 | Published 2025-12-19 | Updated 2025-12-19 | Assigner GitHub_M

CRITICAL: 9.7CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Problem types

CWE-94: Improper Control of Generation of Code ('Code Injection')

Product status

< 0.11.1

affected

References

github.com/...m/Dive/security/advisories/GHSA-xv8m-365j-x6h2 exploit

github.com/...m/Dive/security/advisories/GHSA-xv8m-365j-x6h2

cve.org (CVE-2025-66580)

nvd.nist.gov (CVE-2025-66580)

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