registry / Credential exfiltration / hostinger-api-mcp / 3.3.0

hostinger-api-mcp@3.3.0

MCP server for Hostinger API

AI Security Review

scanned 4d ago · by lpm-firewall-ai

The source supports a conditional credential exposure warning: an unrestricted API_BASE_URL can redirect requests that carry a Hostinger access token. The Hostinger default, absence of install hooks, and explicit build behavior do not establish a covert attack or malicious intent.

Static reason

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

Trigger

A user configures API_BASE_URL and invokes an authenticated API operation.

Impact

A token for the Hostinger account could be disclosed to the configured recipient if the value points to an unrelated endpoint.

Mechanism

The runtime builds the request URL from API_BASE_URL and attaches the access token obtained from its OAuth provider as a bearer credential; no destination allowlist is shown.

AI rationale

Evidence

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

Network endpoints1

developers.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 runtime accepts API_BASE_URL and defaults to the Hostinger API host.
Authenticated API requests use a bearer token in the Authorization header and build their URL from the configured base.
The OAuth provider reuses a saved access token; the runtime obtains tokens through that provider.
The Cursor instructions describe optional user configuration, not an automatic configuration write.
The manifest has no install lifecycle hook; its build script runs the TypeScript compiler.
The bootstrap invokes the Hostinger package through npx as part of its sign-in flow.

Evidence against

The default API destination is Hostinger, and the reviewed code does not show an automatic transfer to a fixed unrelated host.
The package has no install lifecycle hook; the flagged build command is an explicit build step.

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 }

skills/headless/connect/bootstrap.mjsView file

•matchType = previous_version_dangerous_delta matchedPackage = hostinger-api-mcp@3.2.2 matchedIdentity = npm:aG9zdGluZ2VyLWFwaS1tY3A:3.2.2 similarity = 0.955 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.

skills/headless/connect/bootstrap.mjsView on unpkg

src/core/skills.jsView file

Lines 85-125javascript

85 },

86 {

87 "uri": "skill://hostinger-headless/connect/tools/claude-code.md",

88 "digest": "sha256:f26a77d3d3583dd2fef27a056c619fc399ee7cbb49b8e221b3a16a79289a11ea",

89 "size": 2676,

90 "mimeType":

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

skills/headless/connect/bootstrap.mjsView 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.

Findings

1 Critical3 High4 Medium4 Low

CriticalPrevious Version Dangerous Deltaskills/headless/connect/bootstrap.mjs

HighChild Processbuild.js

HighShell

HighRuntime Package Installbuild.js

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

MediumAi Review Evidencesrc/core/skills.js

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

Affected versions and remediation

This report applies to hostinger-api-mcp@3.3.0.

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

Review the evidence and your use of hostinger-api-mcp@3.3.0 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: 2026-10-19 12:51:11.871Z (UTC).

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