mcp-scraper@0.84.0
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 has a real high-impact browser and agent capability, so it warrants a warning. The observed behavior is user-invoked and package-aligned, with no concrete malicious install-time or covert attack chain.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
The user starts the MCP server, invokes its browser tools, or runs the CLI agent install command with --apply.
Impact
A user who grants the server access to an authenticated browser profile can expose that session to the package's hosted browser workflow.
Mechanism
Hosted MCP calls and browser-session automation using a user-provided API key.
AI rationale
The package has a real high-impact browser and agent capability, so it warrants a warning. The observed behavior is user-invoked and package-aligned, with no concrete malicious install-time or covert attack chain.
Evidence
dist/chunk-WDWWCNMW.jsdist/bin/mcp-scraper-cli.jsdist/server-3F3JMHBF.js~/.mcp-scraper-keyClaude Code user-scope MCP configuration
Network endpoints1
mcpscraper.dev/mcp
Decision evidence
public snapshotAI called this Suspicious at 83.0% confidence as Unknown with medium false-positive risk.
Evidence for warning
- The MCP runtime reads an API key and sends it to the package service for tool calls.
- An explicit CLI command can register a user-scope Claude Code MCP server and optionally preserve browser profile state.
- The bundled server implements hosted browser sessions capable of operating with saved profiles and authenticated web sessions.
Evidence against
- package.json has no preinstall, install, postinstall, or prepare lifecycle hook.
- Agent configuration changes require the user to run the CLI with --apply; only Claude Code is supported.
- The service endpoint defaults to the package's own mcpscraper.dev domain; no covert foreign endpoint or payload loading was found.
Behavioral surface
ChildProcessCryptoEnvironmentVarsFilesystemNetworkShell
HighEntropyStringsUrlStrings
NoLicense
Source & flagged code
10 flaggeddist/chunk-LHIWX7RM.jsView file
25import { dirname, join } from "path";
L26: import { execFile } from "child_process";
L27: function workflowOutputBaseDir(outputDir) {
High
Child Process
Package source references child process execution.
dist/chunk-LHIWX7RM.jsView on unpkg · L25dist/server-3F3JMHBF.jsView file
287[redacted],
L288: ConsentEvidencePrivateRowSchema,
L289: ContextVersionRefSchema,
...
L646: ctaHeadingItalic: "real data.",
L647: 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...
L648: sections: [
...
L909: 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...
L910: source: "https://techcrunch.com/2026/05/05/openai-releases-gpt-5-5-instant-a-new-default-model-for-chatgpt/"
L911: }
...
L957: question: "what is the hallucination rate of Claude in 2026",
L958: 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
1 Critical8 High4 Medium6 Low
CriticalPrevious Version Dangerous Deltadist/bin/mcp-scraper-cli.js
HighChild Processdist/chunk-LHIWX7RM.js
HighShell
HighSame File Env Network Executiondist/bin/mcp-scraper-cli.js
HighBrowser Session Account Hijackdist/server-3F3JMHBF.js
HighCredential Redirect Persistencedist/server-3F3JMHBF.js
HighCommand Output Exfiltrationdist/server-3F3JMHBF.js
HighSandbox Evasion Gated Capabilitydist/bin/mcp-scraper-cli.js
HighSemantic Analysis Limiteddist/chunk-NH4QAH3X.js
MediumNetwork
MediumEnvironment Vars
MediumOversized Source Filedist/server-3F3JMHBF.js
Affected versions and remediation
This report applies to mcp-scraper@0.84.0.
See all versions of mcp-scraper for other recorded verdicts.
- Review the evidence and your use of mcp-scraper@0.84.0 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: .
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