Web Application Penetration Testing

Your web applications are your most exposed attack surface. We test them the way real attackers do — manually, methodically, and without shortcuts.

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What We Test

Web application penetration testing goes far beyond running an automated scanner. Our testers manually explore your application to find the vulnerabilities that tools routinely miss — including business logic flaws that are unique to your specific app.

  • OWASP Top 10 — Injection, broken authentication, XSS, IDOR, security misconfigurations, and more
  • Business Logic Flaws — Abuse of application workflows that automated tools can't detect
  • Authentication & Session Management — Password policies, MFA bypass, session fixation, token entropy
  • API Security — REST and GraphQL API testing including excessive data exposure, improper rate limiting, and authorization gaps
  • Access Control — Horizontal and vertical privilege escalation testing
  • Third-Party Integrations — Security review of connected services and OAuth flows

Our Approach

We offer both black-box and gray-box testing depending on your goals:

  • Black-Box — We start with no credentials or application knowledge, simulating an external attacker
  • Gray-Box — We begin with a standard user account, simulating a malicious or compromised user. This is the most common and cost-effective approach
  • Authenticated Testing — We test all privilege levels (user, admin, API keys) to ensure access controls hold across your entire application

All testing is performed in coordination with your team to avoid impacting production systems. We can test against staging environments or work carefully within production with agreed-upon guardrails.

Why Manual Testing Matters

Automated scanners generate output — not understanding. Every finding they produce requires human review to determine if it's real, and they miss the class of vulnerabilities that require context to recognize. Manual testing eliminates that noise:

  • Zero false positives — every finding we report is verified and exploitable. You won't waste remediation time chasing scanner artifacts
  • Contextual analysis — we understand what your application is supposed to do, which lets us identify when it's doing something it shouldn't
  • Chained attack paths — we connect low-severity findings into the high-impact attack paths that automated tools report separately and miss entirely
  • Business logic coverage — flaws in your application's workflows are invisible to scanners. Manual testers find them because they think like users with bad intent

Our team holds OSWA and OSCP certifications and has tested web applications for Fortune 500 companies and critical infrastructure operators.

Deliverables

  • Executive summary for leadership — risk in plain language
  • Technical report with CVSS scores, proof-of-concept evidence, and reproduction steps
  • Remediation guidance tailored to your tech stack
  • Findings debrief with your development and security teams
  • Optional retest after fixes are applied

Secure Your Web Application

Tell us about your application and we'll scope the right assessment. Most web app tests run one to two weeks.

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