Grades are a hygiene check, not a security guarantee.

MCP, MCP server

X Use

Install, register, and configure x-use, the browser-native MCP server for X (Twitter) automation that needs no X API key.

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 71e503b23f21.

INSTALL_REMOTE_SCRIPT NETWORK_HOST_FROM_INPUT

Why this grade

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    install.sh, line 6 # curl -fsSL https://raw.githubusercontent.com/ihuzaifashoukat/x-use/main/install.sh | bash

  • NETWORK_HOST_FROM_INPUT Medium

    A file takes a URL or endpoint as input and has no fixed host list.

    src/xuse/mcp/media.py, line 108 resp = requests.get(url, timeout=FETCH_TIMEOUT_SECONDS, stream=True, allow_redirects=False, **options)

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

    can delete files.

    PERMISSION_DELETE_FILES

    scripts/ci_browser_smoke.py, line 68

    cli = subprocess.run(

    scripts/ci_browser_smoke.py, line 95

    fresh = subprocess.run(command, input="\n\nn\nn\n", cwd=directory,

    scripts/ci_browser_smoke.py, line 128

    rerun = subprocess.run(command, input="\n\nn\n", cwd=directory,

    Show more

    scripts/selenium_browser_smoke.py, line 117

    process = subprocess.Popen(

    scripts/selenium_browser_smoke.py, line 134

    subprocess.run(

    scripts/setup_uv.py, line 89

    result = subprocess.run(list(command), cwd=str(root), env=environment,

    scripts/sync_skills.py, line 25

    shutil.rmtree(PLUGIN)

    src/xuse/doctor.py, line 179

    result = subprocess.run(

    src/xuse/browser/sessions.py, line 99

    output = subprocess.run(["ps", "-axo", "pid=,ppid=,lstart="],

    src/xuse/utils/file_handler.py, line 395

    # shutil.rmtree(test_dir)

    src/xuse/utils/logger.py, line 184

    # shutil.rmtree(mock_logs_dir)

  • Install and update

    Serious

    install fetches a script from the network. The docs document an installer that pipes a download into a shell.

    INSTALL_REMOTE_SCRIPT INSTALL_DOCUMENTED_INSTALLER

    install.sh, line 6

    # curl -fsSL https://raw.githubusercontent.com/ihuzaifashoukat/x-use/main/install.sh | bash

    install.sh, line 55

    curl -fsSL https://raw.githubusercontent.com/ihuzaifashoukat/x-use/main/install.sh | bash

  • Network

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    src/xuse/mcp/media.py, line 108

    resp = requests.get(url, timeout=FETCH_TIMEOUT_SECONDS, stream=True, allow_redirects=False, **options)

    src/xuse/mcp/media.py, line 241

    fetched = await asyncio.gather(*(fetch(candidate) for candidate in candidates), return_exceptions=True)

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/xuse/doctor.py, line 37

    env_value = os.environ.get("OPENAI_API_KEY")

    src/xuse/core/llm_service/clients.py, line 99

    env_value = os.environ.get("OPENAI_API_KEY")

    scripts/ci_browser_smoke.py, line 113

    assert not (data_home / ".env").exists()

    Show more

    scripts/setup_uv.py, line 151

    (".env.example", ".env", None),

    src/xuse/doctor.py, line 410

    "set OPENAI_API_KEY (+ OPENAI_BASE_URL/OPENAI_MODEL) in .env or the llm block in config/settings.json")]

    src/xuse/doctor.py, line 414

    "replace the placeholder with a real key, or remove it from .env so a valid settings.json key can apply")]

    src/xuse/init_wizard.py, line 7

    - .env LLM API keys (never written into settings.json)

    src/xuse/init_wizard.py, line 300

    env_path = PROJECT_ROOT / ".env"

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Note

    a file was over the read cap and was not fully read. the file cap was reached before every file was read.

    OBFUSCATION_FILE_OVER_READ_CAP OBFUSCATION_FILE_CAP_REACHED

    uv.lock, line 1

    version = 1

    tests/outreach/test_outreach_tools.py, line 1

    """MCP envelopes/annotations and active-account boundaries without a browser."""

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Get the full report on this tool, £49

Note

Hygiene check of commit 71e503b23f21. can delete files. install fetches a script from the network. accepts a host from input, with no fixed list in this file. reads a credential or environment file. a file was over the read cap and was not fully read. the file cap was reached before every file was read.

Date and source

Date checked:

View source

github.com

Commit graded: 71e503b23f2191a36b6c7b6544b193589d2662b8

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