registry / Credential exfiltration / hostinger-api-mcp / 3.4.0

hostinger-api-mcp@3.4.0

MCP server for Hostinger API

AI Security Review

scanned 3d ago · by lpm-firewall-ai

The runtime forwards its Hostinger bearer token to any endpoint selected through API_BASE_URL, with no recipient binding in the request path. Because this requires a configured alternate endpoint and an invoked operation, the evidence supports a warning rather than a publish block.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

An MCP client invokes an API operation while API_BASE_URL points to a non-Hostinger endpoint.

Impact

The configured endpoint can receive a Hostinger access token, exposing the account session to that endpoint.

Mechanism

The runtime builds the request URL from API_BASE_URL and attaches the current bearer token without binding it to the Hostinger service.

AI rationale

Evidence

src/core/runtime.jssrc/core/oauth.js

Network endpoints3

developers.hostinger.comauth.hostinger.comAPI_BASE_URL-configured endpoint

Decision evidence

public snapshot

AI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

runtime.js accepts API_BASE_URL and defaults it to https://developers.hostinger.com.
oauth.js obtains a bearer token from environment configuration or OAuth, loads saved credentials, and defaults its OAuth issuer to auth.hostinger.com.
runtime.js builds operation URLs from the configured base, adds the bearer token to Authorization, and sends the request with axios.
An MCP client must invoke execute to reach the operation request path.
package.json lists start, build, and start:ts scripts; build.js runs npx tsc.
The cited skills.js and skills.ts locations describe optional project or global Cursor configuration for the user to register.

Evidence against

The default API URL and OAuth issuer are Hostinger endpoints; the credential exposure requires configuring a different API_BASE_URL.
The manifest has no install lifecycle script, and the operation request requires an MCP client call.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystem

Source & flagged code

4 flagged

build.jsView file

Lines 1-38javascript

1#!/usr/bin/env node

3import { exec } from 'child_process';

4import fs from 'fs';

High

Child Process

Package source references child process execution.

build.jsView on unpkg · L2

5import path from 'path';

6import { fileURLToPath } from 'url';

8// Get proper paths for ES modules

9const __filename = fileURLToPath(import.meta.url);

10const __dirname = path.dirname(__filename);

12// Ensure dist directory exists

13if (!fs.existsSync('./dist')) {

14 fs.mkdirSync('./dist');

15}

17// Run TypeScript compiler

18console.log('Compiling TypeScript...');

19exec('npx tsc', (error, stdout, stderr) => {

20 if (error) {

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

build.jsView on unpkg · L18

21 console.error('Error compiling TypeScript:', error);

22 console.error(stderr);

23 process.exit(1);

24 }

26 if (stdout) {

27 console.log(stdout);

28 }

30 console.log('TypeScript compilation successful');

32 // Copy .env.example to dist

33 try {

34 if (fs.existsSync('./.env.example')) {

35 fs.copyFileSync('./.env.example', './dist/.env.example');

36 console.log('Copied .env.example to dist directory');

37 }

src/core/skills.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = hostinger-api-mcp@3.3.0 matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.3.0 similarity = 0.897 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

src/core/skills.jsView on unpkg

src/core/runtime.jsView file

Lines 61-101javascript

61 method: z.literal("skills/get"),

62 // Lenient on purpose: a missing or non-string uri must surface as InvalidParams

63 // from the handler, not as a zod parse failure (InternalError).

64 params: z.object({ uri: z.unknown().optional() }).passthrough().optional

Source & flagged code

4 flagged · loading source

build.jsView file

2L3: import { exec } from 'child_process'; L4: import fs from 'fs';

High

Child Process

Package source references child process execution.

build.jsView on unpkg · L2

18console.log('Compiling TypeScript...'); L19: exec('npx tsc', (error, stdout, stderr) => { L20: if (error) {

High

Runtime Package Install

Package source invokes a package manager install command at runtime.

build.jsView on unpkg · L18

src/core/skills.jsView file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

src/core/skills.js

Findings

1 Critical3 High4 Medium4 Low

CriticalPrevious Version Dangerous Deltasrc/core/skills.js

HighChild Processbuild.js

HighShell

HighRuntime Package Installbuild.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

MediumAi Review Evidencesrc/core/runtime.js

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to hostinger-api-mcp@3.4.0.

See all versions of hostinger-api-mcp for other recorded verdicts.

Review the evidence and your use of hostinger-api-mcp@3.4.0 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-10-20 06:16:08.364Z (UTC).

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