Web Application Penetration Testing
Your web application is the most exposed part of your business. One IDOR vulnerability, one broken access control, one business logic flaw — and an attacker has your users’ data. We find these before your customers do.
What is Web Application Penetration Testing?
In-depth manual and tool-assisted testing of your web applications to identify and exploit vulnerabilities before attackers do — aligned with OWASP Top 10 and beyond.
Web application vulnerabilities are the most commonly exploited category in data breaches. Most are introduced during development and remain undetected until a real attack — by which point customer data, payment information, and business reputation are already at risk.
At a Glance
- Frameworks
- OWASP Testing Guide, OWASP Top 10, PTES
- Typical Timeline
- 3–10 days depending on complexity
- Report
- Executive summary + full technical findings
- Retest
- Complimentary, included in every engagement
- Coverage
- Unauthenticated + all authenticated user roles
- Standard
- OWASP Top 10 coverage matrix included
Outcomes that move your security forward
What You Receive
Executive Summary Report
Risk overview and headline findings for non-technical stakeholders
Full Technical Report
All vulnerabilities documented with OWASP classification, CVSS score, request/response proof-of-concept, and reproduction steps
Developer Remediation Guide
Fix instructions written for developers, including code-level guidance where applicable
OWASP Top 10 Coverage Matrix
Shows which OWASP risk categories were tested and the findings in each
Retest Report
Confirms all critical and high findings resolved after your team applies fixes
What We Test
We go far beyond OWASP checklists to find the business-logic vulnerabilities that scanners never surface.
How We Run This Engagement
Every engagement follows a defined, transparent process — so you always know what is happening, when, and what to expect next.
Scoping
Define application URLs, authenticated roles, and out-of-scope areas.
Unauthenticated Testing
Test the application as an anonymous user — mapping all exposed functionality.
Authenticated Testing
Test across all user roles to identify broken access controls and privilege escalation paths.
Manual Deep-Dive
Manually investigate all high-risk areas and business logic flows — this is where real vulnerabilities are found.
Reporting
Risk-rated findings with OWASP classification, proof-of-concept, and remediation steps.
Retest
Verify remediation of critical and high findings. Issue formal retest certificate.
Why Work With Vigilant Defenders
Manual Testing. Not Scanner Output.
Automated tools find known signatures. Our certified consultants find the chained attack paths, logic flaws, and context-specific vulnerabilities that no scanner will surface. Every finding is manually verified.
Reports Built for Action, Not Filing.
Every finding includes a proof-of-concept, a CVSS risk score, and step-by-step remediation guidance written for the team that has to fix it. Your developers and your board both get a report they can use.
We Test Business Logic — Not Just OWASP Checkboxes.
Any scanner can check for SQL injection. We go deeper — testing the logical flows specific to your application: what happens when a user manipulates their account ID, skips a payment step, or escalates to another user’s data.
Frequently asked questions
Everything you need to know about this engagement.
Yes. Our web application testing methodology is built around the OWASP Testing Guide and OWASP Top 10, ensuring comprehensive coverage of the most critical web application risks. We also go beyond OWASP to test business-logic vulnerabilities specific to your application.
Related services
Find Out What's Exploitable in Your Web Application
Get a free scoping consultation — no commitment required. We’ll scope the right web application penetration testing engagement for your environment and send a fixed-fee proposal within 24 hours.