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Service

Web Application Penetration Testing

In-depth, authorized manual web application penetration testing across authenticated and unauthenticated surfaces, combining manual exploitation with tool-assisted analysis to identify exploitable risk and provide engineers with actionable remediation guidance.

What We Test

Coverage areas applied through manual validation and tool-assisted analysis.

  • Authentication and session management
  • Authorization and access control (vertical and horizontal)
  • Input validation and injection (SQLi, command, template, XSS)
  • Business logic and workflow abuse
  • Server-side request forgery and SSRF chains
  • File upload handling and content sniffing
  • Sensitive data exposure and storage flaws
  • Cryptographic implementation and TLS posture
  • Security headers, cookies, and CSP enforcement

Methodology

Testing is anchored in the OWASP Top 10 and the OWASP Web Security Testing Guide, combined with structured manual validation against the application's real business logic. Automated scans are used only to extend coverage — they never substitute for human verification.

Each finding is reproduced, verified, and documented with evidence. False positives are removed before reporting so engineering teams spend remediation time on real issues.

Deliverables

What you receive at the close of the engagement.

  • Executive summary written for non-technical readers
  • Detailed technical findings with reproduction steps
  • Severity ratings with business impact context
  • Annotated screenshots and proof-of-concept evidence
  • Prioritized remediation guidance
  • Optional retest summary
  • Engineer-ready debrief session

Who This Service Is For

Organizations and product teams that most commonly engage us for this assessment.

  • SaaS companies
  • Technology startups
  • Customer portals
  • Internal business applications
  • Healthcare platforms
  • Financial services
  • E-commerce platforms
  • Enterprise web applications

When Organizations Typically Need This Assessment

Common moments in a product or compliance lifecycle where this assessment adds the most value.

  • Before launching a new application
  • Before SOC 2 or ISO 27001 readiness work
  • Before a customer or enterprise security review
  • Before funding or acquisition due diligence
  • After major application or architectural changes
  • Following a suspected security incident
  • Prior to handling sensitive customer data
  • Before production deployment of new features

Engagement Timeline

A typical engagement moves through the following phases. Exact durations vary with scope and complexity.

  1. Scope Definition

    Assets, user roles, environments, and success criteria are agreed and documented.

  2. Authorization

    Written authorization and Rules of Engagement are signed before any testing begins.

  3. Information Gathering

    We map the application, endpoints, user roles, and trust boundaries.

  4. Manual Assessment

    Manual exploitation across authentication, access control, injection, and business logic.

  5. Validation

    Every finding is reproduced and confirmed against live behavior; false positives removed.

  6. Reporting

    Executive summary and technical findings with evidence and prioritized remediation.

  7. Debrief

    Engineer-ready walkthrough of findings, remediation options, and risk trade-offs.

  8. Optional Retesting

    Verification that reported issues have been resolved after remediation.

Example Finding

Illustrative only. Not a real client engagement. Provided to convey the level of detail included in reports.

HIGHIllustrative example

Broken Access Control on Tenant-Scoped Resource

Business Impact
An authenticated user in one tenant could enumerate and read customer records belonging to other tenants by modifying a numeric identifier in an API request, resulting in cross-tenant data exposure.
Recommendation
Enforce server-side authorization on every tenant-scoped endpoint by validating the caller's tenant against the requested resource, and add automated tests that assert cross-tenant isolation.

Frequently Asked Questions

Answers to the questions clients most often ask before engaging us for this assessment.

How long does a web application penetration test take?

Most engagements take one to three weeks depending on application size, number of user roles, and the depth of business logic. We agree on a specific window during scoping.

What methodology do you follow?

Testing is anchored in the OWASP Top 10 and the OWASP Web Security Testing Guide (WSTG), combined with structured manual validation against the application's real business logic.

Do you perform manual testing or only automated scans?

Every finding is verified manually. Automated scans are used to extend coverage, but they never replace human validation, and false positives are removed before reporting.

Will testing affect our production environment?

We prefer a dedicated staging environment. When production testing is required, we agree on rate limits, avoid destructive payloads, and coordinate a testing window with your team.

Do you provide remediation guidance?

Yes. Each finding includes prioritized, engineer-ready remediation guidance, including framework-specific recommendations where relevant.

Do you sign NDAs?

Yes. We sign mutual NDAs before receiving any documentation or credentials and follow strict data handling practices throughout the engagement.

Can you retest fixes after remediation?

Yes. A retest summary is available at the close of the engagement to confirm that reported issues have been resolved.

What deliverables are included?

An executive summary, detailed technical findings with reproduction steps, severity and business impact ratings, evidence, prioritized remediation guidance, an optional retest summary, and an engineer-ready debrief session.