registry / Credential exfiltration / hostinger-api-mcp / 2.18.0

hostinger-api-mcp@2.18.0

MCP server for Hostinger API

AI Security Review

scanned 6d ago · by lpm-firewall-ai

Source inspection found no install hook or fixed third-party credential recipient. However, API_BASE_URL has no destination allowlist, and runtime requests attach the OAuth bearer token to URLs built from it, leaving conditional credential exposure unresolved.

Static reason

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

Trigger

An operator configures API_BASE_URL to another host and invokes a Hostinger API tool.

Impact

The configured recipient may receive a reusable Hostinger API credential; exposure depends on the operator’s endpoint configuration.

Mechanism

Runtime request paths build API URLs from API_BASE_URL and attach the current bearer token in the Authorization header.

AI rationale

Evidence

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

Network endpoints1

developers.hostinger.com

Decision evidence

public snapshot

AI called this Suspicious at 85.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The manifest exposes start and build scripts but has no install lifecycle hook.
The build script runs the TypeScript compiler when invoked; it does not run an install command.
OAuth can return a saved access token, and runtime requests attach that bearer token to their URL.
The API base defaults to Hostinger but can be replaced through API_BASE_URL without a destination allowlist.
The runtime includes multiple specialized API request paths that send bearer tokens to URLs built from the configured API base.

Evidence against

The default API and OAuth destinations are Hostinger services, and the package’s listed tools describe Hostinger account operations.
API requests are issued through MCP tool handlers; no automatic credential transfer to a fixed unrelated host was identified.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

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/oauth.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = hostinger-api-mcp@1.57.0 matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:1.57.0 similarity = 0.518 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/oauth.jsView on unpkg

package.jsonView file

Lines 1-38json

2 "name": "hostinger-api-mcp",

3 "version": "2.18.0",

4 "mcpName": "io.github.hostinger/hostinger-api-mcp",

5 "description": "MCP server for Hostinger API",

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/oauth.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/oauth.js

Findings

1 Critical3 High4 Medium4 Low

CriticalPrevious Version Dangerous Deltasrc/core/oauth.js

HighChild Processbuild.js

HighShell

HighRuntime Package Installbuild.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

MediumSuspicious Lifecycle Evidencepackage.json

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to hostinger-api-mcp@2.18.0.

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

Review the evidence and your use of hostinger-api-mcp@2.18.0 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: 2026-10-17 08:08:07.370Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.