Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Mcp Listmonk

Manage Listmonk subscribers, campaigns, lists, templates, and administration via MCP.

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.

NETWORK_NO_FIXED_HOST SECRETS_PATH_UNCONFIRMED OBFUSCATION_ENCODED_BLOB

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    src/httpApp.ts, line 14 return app.fetch(new Request(url, request));

  • SECRETS_PATH_UNCONFIRMED Low

    The Secrets check reports a credential or environment file, but no quoted line shows a recognisable path.

    src/config.ts, line 49 const next: NodeJS.ProcessEnv = { ...env };

  • OBFUSCATION_ENCODED_BLOB Low

    Contains a long base64 shaped string in a file that should be readable.

    README.md, line 10 [![Add listmonk MCP server to Cursor](https://cursor.com/deeplink/mcp-install-dark.svg)](cursor://anysphere.cursor-deeplink/mcp/install?name=listmonk&config=eyJjb21tYW5kIjoibnB4Iiw

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

    Pass

    No shell or command call was found in the code. This check does not read permissions an entry declares. A permission line to write or edit files was found in this repository, and it may apply to this entry.

  • Install and update

    Pass

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

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    src/httpApp.ts, line 14

    return app.fetch(new Request(url, request));

    src/httpApp.ts, line 16

    return app.fetch(request);

    src/services/listmonkClient.ts, line 44

    const res = await this.http.request({

    Show more

    src/services/listmonkClient.ts, line 58

    const res = await this.http.request({

    Dockerfile, line 44

    CMD node -e "fetch('http://127.0.0.1:'+(process.env.PORT||process.env.MCP_HTTP_PORT||3000)+'/health').then(r=>process.exit(r.ok?0:1)).catch(()=>process.exit(1))"

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_UNCONFIRMED

    src/config.ts, line 49

    const next: NodeJS.ProcessEnv = { ...env };

    .dockerignore, line 10

    !LICENSE

    .gitignore, line 3

    *.log

  • Agent instructions

    Pass

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

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable.

    OBFUSCATION_ENCODED_BLOB

    README.md, line 10

    [![Add listmonk MCP server to Cursor](https://cursor.com/deeplink/mcp-install-dark.svg)](cursor://anysphere.cursor-deeplink/mcp/install?name=listmonk&config=eyJjb21tYW5kIjoibnB4Iiw

    README.md, line 127

    [![Add listmonk MCP server to Cursor](https://cursor.com/deeplink/mcp-install-dark.svg)](cursor://anysphere.cursor-deeplink/mcp/install?name=listmonk&config=eyJjb21tYW5kIjoibnB4Iiw

    README.md, line 321

    [![Add MCP Server listmonk to LM Studio](https://files.lmstudio.ai/deeplink/mcp-install-light.svg)](https://lmstudio.ai/install-mcp?name=listmonk&config=eyJjb21tYW5kIjoibnB4IiwiYXJ

  • 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 c470251b8857. can reach a host that is not written as a fixed address. reads a credential or environment file. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: c470251b885709c7a860f9c244f65c380f545af3

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