Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Browser Use Mcp Server

Browse the web, directly from Cursor etc.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

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

Rescanned at commit a9864a400979, unchanged since the check below.

SECRETS_PATH_DOTENV PERMISSION_SHELL_DECLARED INSTALL_DOCUMENTED_INSTALLER

Why this grade

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    README.md, line 33 Create a `.env` file:

  • PERMISSION_SHELL_DECLARED Note

    Runs shell commands, and the manifest or description says so.

    server/server.py, line 927 with subprocess.Popen(proxy_cmd) as proxy_process: # nosec

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 26 curl -LsSf https://astral.sh/uv/install.sh | sh

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

    Note

    requests shell access. The manifest names this permission.

    PERMISSION_SHELL_DECLARED

    server/server.py, line 927

    with subprocess.Popen(proxy_cmd) as proxy_process: # nosec

    .bandit.yml, line 9

    no_shell: [subprocess.Popen]

  • Install and update

    Note

    README documents an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 26

    curl -LsSf https://astral.sh/uv/install.sh | sh

  • Network

    Pass

    No network call found.

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .gitignore, line 3

    **/*.pyc

    README.md, line 33

    Create a `.env` file:

  • 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

    Note

    the latest commit is more than 365 days old.

    MAINTAINER_STALE

    No file path was stored.

    2025-07-10T11:57:18+02:00

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Note

Hygiene check of commit a9864a400979. requests shell access. The manifest names this permission. README documents an installer that pipes a download into a shell. reads a credential or environment file. the latest commit is more than 365 days old.

Date and source

Date checked:

View source

github.com

Commit graded: a9864a400979e6e80fac9bff3e38adf3fa4e64cb

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