registry / Credential exfiltration / hostinger-api-mcp / 2.3.0

hostinger-api-mcp@2.3.0

MCP server for Hostinger API

AI Security Review

scanned 6d ago · by lpm-firewall-ai

The source forwards saved access and refresh tokens to configurable destinations without host allowlisting, so an alternate configuration can expose credentials. The default destinations are Hostinger and no install-time transfer is present, supporting a warning rather than a block.

Static reason

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

Trigger

The MCP server handles an authenticated API tool request with an alternate API base URL, or refreshes a saved token with an alternate OAuth issuer.

Impact

The configured endpoint can receive an access or refresh token. The source establishes a configuration-dependent exposure, not a fixed publisher-selected recipient.

Mechanism

The runtime sends bearer tokens to request URLs built from the configured API base URL. OAuth refresh sends the stored refresh token to the configured issuer.

AI rationale

Evidence

src/core/oauth.jssrc/core/runtime.js~/.config/hostinger-mcp/credentials.json

Network endpoints2

developers.hostinger.comauth.hostinger.com

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

The OAuth provider loads and saves user credentials, then supplies an access token for authenticated requests.
API requests use an environment-configurable base URL that defaults to Hostinger; source does not restrict the override to Hostinger hosts.
Authenticated API request handlers send bearer tokens to URLs built from that configurable base URL; the MCP entrypoint exposes these actions through client tool requests.
The OAuth issuer is also environment-configurable, and the provider sends a stored refresh token to that issuer during refresh.
The manifest has no install lifecycle hook, and its build script runs the TypeScript compiler.

Evidence against

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedUrlStrings

Manifest

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

Lines 48-88javascript

48 * Empty values fall through, matching the previous `||` behavior.

49 */

50export function getEnvToken() {

51 return (

52 process.env["HOSTINGER_API_TOKEN"] ||

53 process.env[

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

•matchType = previous_version_dangerous_delta matchedPackage = hostinger-api-mcp@1.57.0 matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:1.57.0 similarity = 0.589 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.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

MediumAi Review Evidencesrc/core/oauth.js

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to hostinger-api-mcp@2.3.0.

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

Review the evidence and your use of hostinger-api-mcp@2.3.0 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 08:08:39.883Z (UTC).

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