Web application testing

Web application penetration testing that finds what scanners leave behind.

Hands-on web application penetration testing across OWASP Top 10 plus business-logic and authorization flaws scanners miss — retest of reported findings included in scope.

What's at stake

A scanner report will not close the deal or satisfy the auditor.

Customers and SOC 2, ISO 27001, PCI DSS, and HIPAA auditors want evidence of hands-on testing — not a scan export.

Business-logic flaws, authorization bypass, and multi-tenant isolation gaps are the findings that stop deals and fail audits — and the ones an automated scanner cannot reach. That is what this engagement covers.

What we cover

Six surfaces we test on every web application engagement.

Authentication and session

Login flows, password reset, MFA bypass, session fixation, token handling, remember-me behavior.

Authorization and access control

Horizontal and vertical IDORs, role escalation, multi-tenant isolation, function-level access checks.

Input handling

SQL/NoSQL injection, XSS (stored, reflected, DOM), template injection, file-upload abuse, deserialization issues.

Business logic

Workflow bypasses, race conditions, financial logic flaws, abuse of free-trial and referral systems.

API surfaces inside the app

Internal API endpoints called by the SPA, GraphQL operations, and webhook handlers.

Client-side and supply chain

Dangerous JS dependencies, exposed secrets, postMessage handling, CSP and security-header gaps.

How we test

Manual testing, framework-aligned, evidence at every step.

We follow OWASP Testing Guide, OWASP ASVS, and PTES. Engagements are led by senior testers in-house. Every finding includes a working proof of concept and a paste-ready remediation.

  • Reconnaissance

    Map the application surface — SPA routes, API endpoints, third-party integrations.

  • Authentication and authorization

    Manual testing of every role boundary and access path.

  • Targeted exploitation

    Confirm exploitability with safe proof of concept — no destructive payloads.

  • Reporting and walkthrough

    Live walkthrough of every finding with the engineering team.

What you get

One report. Three audiences.

For the board

A one-page summary that fits on a slide: what was tested, what was found, what was fixed.

For auditors and buyers

An executive section with control mapping for SOC 2, ISO, PCI, and HIPAA.

For engineers

Each finding has steps, request and response evidence, severity, and a paste-ready remediation.

Ready to scope your web application pentest?

A quick call gives you a fixed scope, price, and start date.

Get a straight answer
Typical scenarios

Three patterns we see most often.

Pre-launch hardening

You are about to ship a new product or major feature and want a clean test before customers see it.

Customer security review

A customer is asking for a current pentest report. The deal slows without one.

Audit fieldwork approaching

SOC 2 or ISO fieldwork is a few weeks out and pentest is on the control list.

FAQ

Web app testing — common questions

What is web application penetration testing?

A hands-on assessment where a qualified tester finds and safely exploits vulnerabilities — including business-logic and authorization issues scanners cannot reach. Deliverable is a report with reproducible findings, severities, and remediation guidance.

Do you test in production or staging?

We default to staging when one exists and matches production. For production testing we agree on safe-testing rules, throttle activity, and stay reachable on a shared channel throughout.

How long does a web app pentest take?

2–3 weeks of testing for a single application, plus a week for reporting and a retest of reported findings after fixes (included in scope). Larger engagements run longer — date confirmed on the scoping call.

Do you cover OWASP Top 10?

OWASP Top 10 is the floor, not the ceiling. We also test business-logic, authorization, and chaining issues that fall outside standard categories — the ones attackers exploit in practice.

Will the report satisfy our SOC 2 / ISO / PCI / HIPAA auditor?

Yes. Each finding is mapped to the relevant SOC 2 trust criteria, ISO 27001 Annex A control, PCI DSS requirement, or HIPAA safeguard. These reports are used as audit evidence without rework.

Want a credible answer when a customer, auditor, or your board asks how secure you are?

A quick scoping call with the senior tester who would run your engagement. No slides, no pitch — we look at what you have, tell you what we would test first, and give you a fixed scope, price, and date.