CAPTCHA-MCP

Item: CAPTCHA-MCP
Rating: 58
Author: M8ven

Enables AI assistants to control a real Chrome browser with trusted mouse input to solve interactive CAPTCHAs like sliders, using a Chrome extension and OS-level mouse automation.

→ cuttlefish-1997/CAPTCHA-MCP · listed on glama

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// key findings

⚠️

Known vulnerabilities in dependencies: 4 high

Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

// known CVEs in dependencies4 high1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highws@8.18.0GHSA-96hv-2xvq-fx4p

ws: Memory exhaustion DoS from tiny fragments and data chunks

lowws@8.18.0GHSA-58qx-3vcg-4xpx

ws: Uninitialized memory disclosure

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// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configCHROME_MCP_PORT— 7891 WebSocket bridge port. If you change it, update WS_URL in extension/background.js too.

configCHROME_MCP_TIMEOUT— 30000 ms to wait for the extension to reply before erroring.

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/cuttlefish-1997-captcha-mcp-z926m2)](https://m8ven.ai/mcp/cuttlefish-1997-captcha-mcp-z926m2)

commit: 771ea8e3079e780f1f45f20c891dcd1470f4fb44

code hash: 203aced0da7831c4186d6ca0422ce8d3923d1b152f6d01f097b9056d99e0fcbe

verified: 6/18/2026, 10:36:34 AM

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