mcp-scraper@0.83.5
Upgrade to mcp-scraper 0.98.0 or newer. Older releases include obsolete local execution code; see the packaged README for hosted-client migration.
MCP server for MCP Scraper web intelligence tools
AI Security Review
scanned 2mo ago · by lpm-firewall-aiThe package is not malicious by the install-hook boundary, but it creates a meaningful persistent authenticated-browser capability for AI-agent clients. Static source does not establish automatic credential exfiltration or unconsented installation-time control-surface mutation.
Static reason
One or more suspicious static signals were detected.
Trigger
A user or MCP client calls browser_profile_connect and later browser_open with the saved profile.
Impact
A compromised, overly trusted, or misdirected MCP client could act through saved third-party account sessions.
Mechanism
Hosted authenticated-browser profile persistence and reuse.
AI rationale
The package is not malicious by the install-hook boundary, but it creates a meaningful persistent authenticated-browser capability for AI-agent clients. Static source does not establish automatic credential exfiltration or unconsented installation-time control-surface mutation.
Evidence
dist/chunk-2BOBOKFQ.jsdist/server-2E4YF6TY.js
Network endpoints2
mcpscraper.devserp-redirector.vercel.app
Decision evidence
public snapshotAI called this Suspicious at 87.0% confidence as Dangerous Capability with low false-positive risk.
Evidence for warning
- It provides an MCP tool that has users sign in to account-gated sites in a hosted browser, saves the login, and later drives that logged-in session.
- The browser tool can persist cookies and storage to a named profile.
- Maps searches can be routed through a fixed third-party redirector.
Evidence against
- package.json has no preinstall, install, postinstall, or prepare hook.
- The Claude MCP configuration change requires an explicit CLI command and --apply option.
- No source evidence showed automatic secret harvesting or exfiltration during package installation.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
9 flaggeddist/chunk-2BOBOKFQ.jsView file
19857// src/mcp/replay-annotator.ts
L19858: import { execFile } from "child_process";
L19859: import { mkdtemp, rm, stat, writeFile } from "fs/promises";
High
Child Process
Package source references child process execution.
dist/chunk-2BOBOKFQ.jsView on unpkg · L19857dist/server-2E4YF6TY.jsView file
281[redacted],
L282: ConsentEvidencePrivateRowSchema,
L283: ContextVersionRefSchema,
...
L635: ctaHeadingItalic: "real data.",
L636: ctaBody: "MCP Scraper gives your AI workflows the web intelligence they need \u2014 SERP data, People Also Ask harvests, page extraction, YouTube transcripts, and more. All via API...
L637: sections: [
...
L898: answer: `<strong>ChatGPT makes things up because its RLHF training consistently rewarded fluent, complete-sounding answers \u2014 and human raters often cannot tell in the moment w...
L899: source: "https://techcrunch.com/2026/05/05/openai-releases-gpt-5-5-instant-a-new-default-model-for-chatgpt/"
L900: }
...
L946: question: "what is the hallucination rate of Claude in 2026",
L947: answer: `<strong>Claude's hallucination rate in 2026 spans from 0%
High
Browser Session Account Hijack
Browser source reuses an authenticated session to collect identity data and mutate account settings while reporting externally.
Findings
8 High4 Medium6 Low
HighChild Processdist/chunk-2BOBOKFQ.js
HighShell
HighSame File Env Network Executiondist/bin/mcp-scraper-cli.js
HighBrowser Session Account Hijackdist/server-2E4YF6TY.js
HighCredential Redirect Persistencedist/server-2E4YF6TY.js
HighCommand Output Exfiltrationdist/server-2E4YF6TY.js
HighSandbox Evasion Gated Capabilitydist/bin/mcp-scraper-cli.js
HighSemantic Analysis Limiteddist/chunk-NH4QAH3X.js
MediumNetwork
MediumEnvironment Vars
MediumOversized Source Filedist/server-2E4YF6TY.js
MediumStructural Risk Force Deep Review
LowScripts Present
Affected versions and remediation
This report applies to mcp-scraper@0.83.5.
See all versions of mcp-scraper for other recorded verdicts.
- Review the evidence and your use of mcp-scraper@0.83.5 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: .
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