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How to Scan Web App Vulnerabilities with Claude

Scan web application vulnerabilities with Claude and ToolRouter. Automated security testing.

Claude transforms penetration testing into a conversational security review where each discovered vulnerability leads to deeper investigation. Ask Claude to scan your application, explain each finding in context, chain additional targeted tests based on initial results, and generate remediation code for every issue found. Its analytical depth is ideal for security-conscious developers who want to understand not just what is vulnerable but why and how to fix it permanently.

Connect ToolRouter to Claude

1Go to Settings → Connectors → Add custom connector

2Enter the details below and click Add

Name

ToolRouter

URL

https://api.toolrouter.com/mcp

3Done — works on Claude chat, desktop, and mobile

Steps

Once connected (see setup above), use the Pentest tool:

Ask Claude: "Scan this web application for vulnerabilities using pentest" and provide the target URL
Claude runs scan_vulnerabilities and returns a detailed findings report
Review each vulnerability by severity and exploitability
Prioritize fixes starting with critical and high-severity issues

Example Prompt

Try this with Claude using the Pentest tool

Scan https://staging.myapp.com for security vulnerabilities. Check for injection flaws, authentication issues, and misconfigurations. Give me a prioritized report.

Tips

Always scan staging environments rather than production to avoid disruption
Ask Claude to explain each vulnerability and suggest specific remediation steps
Run scans after every major feature deployment to catch new vulnerabilities early

More Claude Guides

How to Test API Security with Claude How to Check SQL Injection with Claude How to Test XSS Exposure with Claude How to Scan Auth Weaknesses with Claude How to Test CORS Security with Claude

Related Workflows

Full Security AssessmentComprehensive security assessment combining infrastructure probing, vulnerability scanning, penetration testing, and CVE intelligence.Compliance Security AuditAudit systems against compliance frameworks using automated scanning, vulnerability checks, auth testing, and research.Web Application Security TestCrawl a web application, analyze HTTP security, test for injections, and document findings with screenshots.Network ReconnaissanceMap the complete network attack surface through DNS enumeration, geolocation, service probing, and attack vector analysis.API Security TestingTest API endpoints for authentication flaws, injection vulnerabilities, and compliance with OWASP API Security Top 10.Cloud Security AuditAudit cloud infrastructure by discovering assets, probing for misconfigurations, testing cloud-specific attacks, and checking CVEs.Third-Party Risk AssessmentAssess third-party vendor security through identity verification, external security probing, attack surface analysis, and breach history.