Map Traveler MCP Server
@mfukushim/map-traveler-mcp
npm
v0.1.7
Source verified
Published by mfukushim — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
Virtual traveler library for MCP
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 6.3 = 94. What the published surface and source actually contain:
| Points | What was found | Category |
|---|---|---|
| −6.3 | Untrusted input concatenated into a command sink MTC-SRC-009 | injection |
2. Client adoption risk — 94 − 6 = 88. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 3
high Shell/command execution in server code (build/esm/ImageService.js)MTC-SRC-002
In the server's implementation (`build/esm/ImageService.js:17`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: { execSync } from "node:child_process"; import { defaultAvatarId } from "./RunnerService.js"; import { GeminiImageGenera
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/esm/ImageService.js
medium Hardcoded egress to an external endpoint (build/esm/ImageService.js)MTC-SRC-003
In the server's implementation (`build/esm/ImageService.js:129`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: return fetch(`https://api.stability.ai/v1/generation/stable-diffusion-xl-1024-v1-0/image-to-image`, {
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/esm/ImageService.js
medium Untrusted input concatenated into a command sink (build/esm/ImageService.js)MTC-SRC-009
In the server's implementation (`build/esm/ImageService.js:530`): A shell/process command assembled from concatenated or interpolated values is command injection when any part is attacker-influenced — the OWASP canonical RCE flow. Verify what reaches the interpolated value. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: y { execSync(`${rembgPath} i ${tempIn} ${tempOut}`); } catch (e) {
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server build/esm/ImageService.js
Tools 14
Each tool and what it can reach — statically extracted from the published source.
add_likeno sensitive capabilitycall_travelerno sensitive capabilityget_settingno sensitive capabilityget_sns_feedsno sensitive capabilityget_sns_mentionsno sensitive capabilityget_traveler_infono sensitive capabilityget_traveler_locationno sensitive capabilitypost_sns_writerno sensitive capabilityreach_a_percentage_of_destinationno sensitive capabilityreply_sns_writerno sensitive capability
Show 4 more tools ↓
reset_avatar_promptno sensitive capabilityset_avatar_promptno sensitive capabilityset_traveler_infono sensitive capabilitytipsno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (14 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.1.7 latest |
B 88/100 | 3 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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