Web Application Penetration Testing
Deep manual testing of business logic, authorisation and data flows.
Manual, business-logic aware testing of web applications and portals, aligned to the OWASP Testing Guide and OWASP Top 10.
- Typical timeline
- Typically 1–3 weeks per application depending on roles and complexity
- Business benefit
- Find the authorisation and logic flaws that automated scanners structurally cannot see.
- Industries
- Banking & Financial ServicesHealthcareE-CommerceIT & Cloud ServicesGovernmentManufacturing
Overview
What Web Application Penetration Testing covers
Web applications hold your most sensitive workflows. We test them the way an attacker with a valid account would: mapping roles, tenants and states, then attacking the trust assumptions between them.
Every finding is manually validated and reproduced, so your engineers receive actionable detail rather than scanner noise.
The problem we solve
Scanners reliably find known technical patterns, but broken access control, tenant isolation failures and abuse of business logic require human reasoning about intent.
Scope & outcomes
What we test and what you receive
Scope coverage
- Authentication, session and password flows
- Authorisation, role and multi-tenant isolation
- Business logic and workflow abuse
- Injection classes (SQL, NoSQL, command, template)
- Cross-site scripting and request forgery
- File upload, parsing and deserialisation
- Server-side request forgery and internal exposure
- Payment, discount and quota manipulation
- Security headers, TLS and misconfiguration
Key benefits
- Reduced likelihood of account takeover and data exposure
- Clear evidence for auditors, customers and regulators
- Developer-ready remediation guidance
- Verified fixes through structured re-testing
Deliverables
- Executive summary written for business stakeholders
- Technical findings with severity, CVSS and reproduction steps
- Evidence: requests, responses, screenshots and payloads
- Prioritised remediation roadmap
- Remediation support session with your engineers
- Re-test report and closure statement
Methodology
Our assessment process
- 01
Scoping and rules of engagement
- 02
Reconnaissance and asset mapping
- 03
Threat modeling against business context
- 04
Automated scanning and coverage checks
- 05
Manual exploitation and chained attack paths
- 06
Impact validation and evidence capture
- 07
Risk analysis and prioritisation
- 08
Reporting, debrief and remediation support
- 09
Re-testing of fixed findings
Tooling
Tools and techniques
Tooling supports expert manual testing — it never replaces it.
FAQ
Web Application Penetration Testing questions
We prefer a production-like staging environment with representative data. Where only production is available, we agree on safe testing windows and non-destructive techniques.
At least two accounts per role and two separate tenants. Authorisation testing depends on being able to cross those boundaries.
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Ready to scope Web Application Penetration Testing?
Talk to our offensive security team about scoping an assessment around your actual risk, stack and timelines.
Prefer email? business@securityloyals.com