Overview
Web applications are where your customers, your data and your revenue meet — and they are the most common entry point in real-world breaches. Our web application penetration tests go well beyond the OWASP Top 10 checklist to find the issues that actually lead to data exposure.
We test as every user role you have, and for SaaS platforms we test across tenants: can one customer read, modify or delete another customer's data? Can a standard user reach admin functions? Can a checkout, approval or refund workflow be manipulated? These questions require human understanding of how your application is supposed to work.
Testing follows the OWASP Web Security Testing Guide (WSTG), with findings mapped to the OWASP Top 10:2025 so they are easy to communicate to stakeholders and auditors.
What's included
Our approach
- Application walkthroughWe learn your roles, data model and critical workflows — ideally with a short call with a product owner.
- Mapping & discoveryWe crawl and proxy the application, identify hidden endpoints and enumerate parameters.
- Authenticated manual testingEach role is tested against every function and object, alongside targeted tooling.
- Exploit chainingLower-severity issues are combined to demonstrate realistic attack paths.
- Report, debrief & retestClear evidence and fixes for developers, followed by verification of remediation.
What you receive
- Findings mapped to OWASP Top 10:2025 and CWE
- HTTP request/response evidence for each issue
- Root-cause remediation guidance
- Role and tenant coverage matrix
- Retest report and attestation letter
Standards & frameworks
- OWASP WSTG
- OWASP Top 10:2025
- OWASP ASVS
- CWE
- PCI DSS 11.4
- SOC 2 CC4.1
Frequently asked questions
Grey-box or black-box — which is better?
Grey-box (with test accounts and some documentation) gives the deepest coverage for the budget and is what we recommend for most applications. Black-box is useful for simulating an external attacker against public functionality.
How do you price a web application test?
Effort is driven by the number of user roles, dynamic pages, API endpoints and complex workflows. We provide a fixed price after a short scoping call.
Can you test applications behind a WAF?
Yes. We can test with the WAF in place, allow-list our IPs for depth, or do both to evaluate the WAF's effectiveness.