registry / Credential exfiltration / hostinger-api-mcp / 3.6.1

hostinger-api-mcp@3.6.1

MCP server for Hostinger API

AI Security Review

scanned 18h ago · by lpm-firewall-ai

The configurable destinations create a conditional credential exposure risk, so this warrants a warning. No install-time attack or unrelated default recipient was established.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review; previous stored version diff introduced dangerous source

Trigger

A saved session is refreshed or an API tool is called while OAUTH_ISSUER or API_BASE_URL points to an unrelated recipient.

Impact

The configured recipient could receive a Hostinger session token.

Mechanism

The refresh flow sends the saved refresh token to the configured issuer, and API calls attach a bearer token to requests using the configured base URL.

AI rationale

The configurable destinations create a conditional credential exposure risk, so this warrants a warning. No install-time attack or unrelated default recipient was established.

Evidence

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

Network endpoints2

auth.hostinger.comdevelopers.hostinger.com

Decision evidence

public snapshot

AI called this Suspicious at 92.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

src/core/oauth.js loads saved credentials and sends a saved refresh token to the configured issuer; OAUTH_ISSUER can override the Hostinger default without binding stored credentials to that issuer.
src/core/runtime.js obtains a bearer token for API requests and sends it to URLs built from API_BASE_URL, which can override the Hostinger default.
package.json defines start, build, and start:ts scripts and has no install lifecycle hook.

Evidence against

The default OAuth issuer and API endpoint are Hostinger services, so the exposure depends on configuring an unrelated recipient.
The inspected source does not establish that credentials were sent to an unrelated recipient by default.

Behavioral surface

Source

ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell

Supply chain

HighEntropyStringsMinifiedUrlStrings

Source & flagged code

10 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 }

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = build.js matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

build.jsView on unpkg

skills/headless/connect/bootstrap.mjsView file

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = [redacted].mjs matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

skills/headless/connect/bootstrap.mjsView on unpkg

src/core/oauth.jsView file

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = src/core/oauth.js matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/core/oauth.jsView on unpkg

src/core/oauth.tsView file

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = src/core/oauth.ts matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/core/oauth.tsView on unpkg

src/core/skills.jsView file

•matchType = previous_version_dangerous_delta matchedPackage = hostinger-api-mcp@3.4.1 matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.4.1 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

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = src/core/skills.js matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/core/skills.jsView on unpkg

src/core/skills.tsView file

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = src/core/skills.ts matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

src/core/skills.tsView on unpkg

skills/headless/steps/05-design/logo-kit.mjsView file

•matchType = normalized_sha256 matchedPackage = hostinger-api-mcp@3.5.0 matchedPath = skills/headless/steps/05-design/logo-kit.mjs matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.5.0 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

skills/headless/steps/05-design/logo-kit.mjsView on unpkg

Source & flagged code

10 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

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

build.jsView on unpkg

skills/headless/connect/bootstrap.mjsView file

Findings

1 Critical10 High3 Medium4 Low

CriticalPrevious Version Dangerous Deltasrc/core/skills.js

HighChild Processbuild.js

HighShell

HighRuntime Package Installbuild.js

HighKnown Malware Source Similarityskills/headless/connect/bootstrap.mjs

HighKnown Malware Source Similaritysrc/core/oauth.js

HighKnown Malware Source Similaritysrc/core/oauth.ts

HighKnown Malware Source Similaritybuild.js

HighKnown Malware Source Similaritysrc/core/skills.js

HighKnown Malware Source Similaritysrc/core/skills.ts

HighKnown Malware Source Similarityskills/headless/steps/05-design/logo-kit.mjs

MediumNetwork

Affected versions and remediation

This report applies to hostinger-api-mcp@3.6.1.

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

Review the evidence and your use of hostinger-api-mcp@3.6.1 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: 2026-10-22 12:05:25.394Z (UTC).

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