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2 vulnerabilities by jlowin

CVE-2025-62801 (GCVE-0-2025-62801)

Vulnerability from cvelistv5 – Published: 2025-10-28 21:36 – Updated: 2025-10-29 14:54
VLAI?
Title
FastMCP vulnerable to windows command injection in FastMCP Cursor installer via server_name
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0, a command-injection vulnerability lets any attacker who can influence the server_name field of an MCP execute arbitrary OS commands on Windows hosts that run fastmcp install cursor. This vulnerability is fixed in 2.13.0.
CWE
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Assigner
References
Impacted products
Vendor Product Version
jlowin fastmcp Affected: < 2.13.0
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Show details on NVD website

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CVE-2025-62800 (GCVE-0-2025-62800)

Vulnerability from cvelistv5 – Published: 2025-10-28 21:34 – Updated: 2025-10-29 15:52
VLAI?
Title
FastMCP vulnerable to reflected XSS in client's callback page
Summary
FastMCP is the standard framework for building MCP applications. Versions prior to 2.13.0 have a reflected cross-site scripting vulnerability in the OAuth client callback page (oauth_callback.py) where unescaped user-controlled values are inserted into the generated HTML, allowing arbitrary JavaScript execution in the callback server origin. The issue is fixed in version 2.13.0.
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
Impacted products
Vendor Product Version
jlowin fastmcp Affected: < 2.13.0
Create a notification for this product.
Show details on NVD website

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