MCP, MCP server
MCP Security & Vulnerability Auditor
A production-ready Model Context Protocol (MCP) Server providing AI coding assistants (Claude Desktop, Cursor, Windsurf, Cline) with native security analysis tools.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit a07efcdb2df2, unchanged since the check below.
PERMISSION_DELETE_FILES INSTALL_UNPINNED
Why this grade
- PERMISSION_DELETE_FILES Low
Contains a call that can delete files.
server.py, line 29
res = subprocess.run( - INSTALL_UNPINNED Low
Dependencies use a range or git URL with no lockfile.
requirements.txt, line 1
mcp>=2.1.0
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Concern
can delete files.
PERMISSION_DELETE_FILES
server.py, line 29
res = subprocess.run(
server.py, line 64
shutil.rmtree(temp_dir, ignore_errors=True)
mcp_scanner/benchmark.py, line 80
subprocess.run(
Show more
mcp_scanner/rules/command_injection.py, line 39
remediation="Use subprocess.run(['binary', 'arg1'], shell=False) with parameterized arguments.",
mcp_scanner/rules/command_injection.py, line 68
remediation="Set shell=False and pass arguments as a list of strings: subprocess.run([cmd, arg1, arg2], shell=False).",
mcp_scanner/rules/command_injection.py, line 111
title="Unsafe child_process.exec() with interpolated command",
mcp_scanner/rules/command_injection.py, line 117
description="child_process.exec() passes strings directly to /bin/sh. Dynamic parameters can escape into arbitrary shell execution.",
mcp_scanner/rules/command_injection.py, line 118
remediation="Use child_process.execFile() or spawn() without a shell, passing arguments in an array.",
README.md, line 24
* **CWE-78 (Command Injection):** Detects unsanitized `subprocess.run`, `child_process.exec`, shell invocation in tool execution blocks.
Install and update
Concern
dependencies are not pinned.
INSTALL_UNPINNED
requirements.txt, line 1
mcp>=2.1.0
Network
Pass
No network call found.
Secrets
Pass
No read of a credential file or secret environment variable found.
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Pass
The latest commit is within the last 365 days.
Note
Hygiene check of commit a07efcdb2df2. can delete files. dependencies are not pinned.
Date and source
Date checked:
github.com
Commit graded: a07efcdb2df2cf4e2a8dc5ace6b5b46060f86859
This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.