Grades are a hygiene check, not a security guarantee.

MCP, MCP server

io.github.carsxe/carsxe-mcp

MCP server for CarsXE vehicle data: VIN specs, plate decode, history, images, recalls (VIN, YMM, batch), YMM options, ownership, market value, and OBD codes.

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_DOTENV SECRETS_ENV_READ OBFUSCATION_FILE_OVER_READ_CAP

Why this grade

  • NETWORK_NO_FIXED_HOST Low

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

    src/index.gcp.ts, line 32 const res = await fetch(`${CARSXE_AUTH_URL}?key=${apiKey}`);

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    src/tools/recognizePlateImage.ts, line 12 // dotenv.config({ path: path.join(__dirname, "../../.env") });

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    src/oauth.ts, line 20 const INTERNAL_SECRET = process.env.MCP_OAUTH_INTERNAL_SECRET ?? "";

  • OBFUSCATION_FILE_OVER_READ_CAP Note

    A file was over the read cap and was not fully read.

    worker-configuration.d.ts, line 1 // Generated by Wrangler by running `wrangler types` (hash: 9c6c6f60ec3f74c7ee99dddce04c3506)

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 execution found, and no extra permission was declared.

  • 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/index.gcp.ts, line 32

    const res = await fetch(`${CARSXE_AUTH_URL}?key=${apiKey}`);

    src/index.ts, line 9

    fetch(request: Request, env: Env, ctx: ExecutionContext) {

    src/index.ts, line 47

    return MyMCP.serveSSE("/sse").fetch(request, env, ctx);

    Show more

    src/index.ts, line 52

    return MyMCP.serve("/mcp").fetch(request, env, ctx);

    src/oauth.ts, line 102

    const upstream = await fetch(`${WEB_BASE}${targetPath}`, {

    src/oauth.ts, line 241

    const res = await fetch(`${WEB_BASE}/api/auth/mcp/introspect`, {

    src/tools/recognizePlateImage.ts, line 68

    const response = await fetch(url, {

    src/tools/vinOcr.ts, line 67

    const response = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    src/oauth.ts, line 20

    const INTERNAL_SECRET = process.env.MCP_OAUTH_INTERNAL_SECRET ?? "";

    src/tools/recognizePlateImage.ts, line 12

    // dotenv.config({ path: path.join(__dirname, "../../.env") });

    src/tools/vinOcr.ts, line 12

    // dotenv.config({ path: path.join(__dirname, "../../.env") });

    Show more

    src/utils/carsxeApi.ts, line 8

    // dotenv.config({ path: path.join(__dirname, "../../.env") });

    .dockerignore, line 6

    .claude

    .dockerignore, line 7

    .env

    .gitignore, line 99

    .env

    .gitignore, line 100

    .env.development.local

    .gitignore, line 101

    .env.test.local

  • 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.

    OBFUSCATION_FILE_OVER_READ_CAP

    worker-configuration.d.ts, line 1

    // Generated by Wrangler by running `wrangler types` (hash: 9c6c6f60ec3f74c7ee99dddce04c3506)

  • 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 c23a9a3608c8. can reach a host that is not written as a fixed address. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: c23a9a3608c8c70f395f5a68abf01913626d5126

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