Web Application Pen Testing
Deep manual testing of your web application, its APIs, and the infrastructure behind them — the full OWASP WSTG, plus the business-logic and auth-chain flaws scanners systematically miss.
- Outcome
- OWASP-plus testing for modern web + API stacks.
- Timeline
- 4 phases1 week · 3–5 weeks · 1 week · 3 days
- Mapped to
- OWASPNIST · PCI DSS 4.0
- Includes
- Readout + retestFixed criticals and highs re-verified.
Know before you book.
Deep testing of one web application and its APIs, including the business-logic flaws that automated scanners can't see.
- Your product is a web app or SaaS and customers send security questionnaires
- You handle payments, personal data or multiple customer tenants
- You've added login, SSO, roles or a public API
- You need OWASP ASVS evidence for a customer or auditor
- Your risk spans network, cloud and web togetherPenetration Testing
- The app includes an LLM or agent you want testedAI Penetration Testing
- Test accounts for every role, including admin
- API documentation or a Postman / OpenAPI collection
- A staging environment that mirrors production
Still not sure? Take the 2-minute check
What you walk away with.
- Full OWASP ASVS 4.0 Level 2 or 3 coverage report
- Business-logic flaw enumeration — the category scanners can't see
- A working exploit chain for every high/critical finding
- Detection guidance for your WAF and application logs
What we cover
Agreed in writing before testing starts.
- Public application + every authenticated role + admin panel
- REST / GraphQL / gRPC / WebSocket APIs
- Authentication, session management, MFA, and SSO flows
- Business-logic testing — race conditions, coupon abuse, workflow bypass
- Modern-framework edge cases (SSR/RSC hydration, streaming, edge runtime)
- Client-side SPA flaws (DOM XSS, prototype pollution)
- Infrastructure-level testing (see Network Pen Testing)
- Denial-of-service testing (opt-in only)
- Third-party SaaS integrations owned by external vendors
How we run it.
- 01
Reconnaissance + mapping
Full route discovery, endpoint enumeration, tech-stack fingerprinting. A complete target model before a single test fires.
- 02
Enumeration
Every role mapped independently; the trust boundaries between them drawn. Role escalation and IDOR hide right here.
- 03
Vulnerability Analysis
Authenticated + unauthenticated passes; AI-assisted coverage across the WSTG; candidate findings confirmed by hand.
- 04
Exploitation — business logic + chains
Race conditions, checkout tampering, workflow bypass. Individual bugs are often low severity; chained, they're catastrophic. We build the chain and show the blast.
- 05
Post-exploitation
What the chain reaches — data, adjacent tenants, backend systems.
- 06
Report + WAF guidance
Findings + reproduction (PoC / Burp files) + WAF and log-detection rules.
Technical detail.
The depth behind the engagement, for the engineer or CISO evaluating us.
- Full OWASP WSTG test cases
- OWASP ASVS 4.0 Level 2 or 3
- REST, GraphQL, gRPC and WebSocket APIs
- Authentication, sessions, MFA and SSO
- Authorisation and cross-tenant access (IDOR / BOLA)
- Race conditions and business-logic abuse
- SPA and SSR/RSC hydration edge cases
- Edge runtimes and serverless functions
- DOM XSS and prototype pollution
- ASVS coverage matrix
- Working PoC or Burp files per critical
- WAF and log detection guidance
What lands in your inbox.
- WAPT Report (executive + technical + appendices)
- OWASP ASVS 4.0 coverage matrix (Level 2 or 3)
- Working PoC scripts / Burp files for every critical finding
- WAF + logging detection rule recommendations
- One free retest of critical + high findings within 90 days
Defensible under audit.
- OWASP
- NIST
- PCI DSS 4.0
From call to report.
- 01Scoping
1 week
- 02Testing
3–5 weeks
- 03Reporting
1 week
- 04Retest
3 days
Asked before every engagement.
How is this different from a plain pen test?
WAPT goes deep on the web + API surface. If your risk spans network + web + AI, the umbrella Penetration Testing engagement is the better fit. If the crown jewels live in the app, this is the sharp instrument.
Do you test staging or production?
Both, with different rules of engagement per environment. Production tests use rate limits and non-destructive payloads.
Can you test against our WAF?
Yes — with and without WAF paths. We report which rules blocked which attacks, and exactly where the WAF was bypassed.
Ship secure by default.
Scoping call, engagement letter, kickoff — typically all inside 3 weeks. Report within 6–8 weeks of kickoff.