Web Application Penetration Testing
Senior-led, OWASP-based testing that goes beyond the scanner. We manually exploit the injection, broken-access-control, authentication and business-logic flaws automated tools miss — across your web apps and the APIs behind them — then hand you a prioritised, evidence-backed report and a free retest to prove every fix holds.
- OWASP Testing Guide & ASVS aligned
- OSCE / OSCP-certified testers
- Manual exploitation — never a scan-and-send
- Free remediation retest included
One overlooked endpoint is the whole breach.
Modern web apps expose hundreds of endpoints, roles and edge cases an automated scanner will never reason about. Attackers don't scan and stop — they chain a small logic flaw into account takeover, data exfiltration and lateral movement. A senior tester thinks the same way, on your side, before they do.
Full coverage across the OWASP Top 10 — and the logic in between.
Structured around the OWASP Testing Guide and ASVS, then extended with the manual, business-logic testing that separates a real assessment from a scan.
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Injection
SQL, NoSQL, OS-command, LDAP and template injection across every input, parameter and header.
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Broken Access Control
IDOR, privilege escalation, forced browsing and multi-tenant isolation failures.
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Authentication & Sessions
Credential handling, MFA bypass, session fixation, and JWT / token weaknesses.
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Business-Logic Abuse
Workflow, pricing, quota and race-condition flaws no automated scanner can reason about.
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API Security
REST and GraphQL testing for BOLA, mass assignment, excessive data exposure and rate-limit gaps.
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Client-Side
XSS, CSRF, CORS misconfiguration, clickjacking and dangerous DOM sinks.
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Security Misconfiguration
Headers, TLS, verbose errors, exposed admin surfaces and default credentials.
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Data Exposure & Crypto
Sensitive data in transit and at rest, weak cryptography and leaked secrets.
From scope to retest — a disciplined, four-phase engagement.
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01
Scope & rules of engagement
We agree targets, environments, credentials and constraints, and set safe testing windows for production or staging.
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02
Recon & mapping
We enumerate the full attack surface — endpoints, roles, APIs and workflows — so nothing is left untested.
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03
Manual exploitation
We hand-test and safely exploit each class of flaw, chaining issues to prove real, business-relevant impact.
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04
Report & free retest
You get a prioritised, evidence-backed report; after you remediate, we retest to confirm every fix — at no extra cost.
A report your engineers can act on — and your auditors accept.
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Prioritised findings
Every issue risk-rated by real business impact and ordered so you fix what matters first.
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Reproducible evidence
Step-by-step proof-of-concept and requests for each finding — no vague, unverifiable claims.
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Developer-ready remediation
Specific, actionable fix guidance written for engineers, not a generic checklist.
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Executive summary
A plain-language overview for leadership, boards and clients requesting assurance.
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Free remediation retest
We re-test your fixes and confirm they hold — included with every engagement.
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Attestation letter
A summary letter you can share with customers, partners and auditors on request.
Evidence that maps to the frameworks you report against.
One engagement, structured so its output slots straight into the assurance work you already have to do.
| Framework | How this engagement maps |
|---|---|
| OWASP Top 10 & API Top 10 | Testing is structured directly around the current OWASP Top 10 and API Security Top 10 categories. |
| OWASP ASVS | Depth aligned to ASVS verification levels, so coverage is measurable rather than ad-hoc. |
| PCI-DSS 6.4.3 / 11.4 | Satisfies the application penetration-testing requirement for cardholder-data environments. |
| SOC 2 | Provides the independent pentest evidence auditors expect for the Security trust-services criteria. |
| ISO 27001 (A.8.29) | Supports the secure-development and technical-review controls in your ISMS. |
What teams ask before a web app test.
What's the difference between a penetration test and a vulnerability scan?
A scan runs automated tools and lists potential issues; a penetration test is a senior human manually exploiting real flaws and chaining them to prove business impact. We never scan-and-send.
Do you test in production or a staging environment?
Either. We commonly test staging to avoid data risk, but can test production safely within agreed rules of engagement and testing windows.
Will testing disrupt our application or users?
No. We work within agreed constraints, avoid destructive actions by default, and coordinate any higher-risk tests with you in advance.
How long does a web application penetration test take?
Most engagements run one to two weeks, depending on the size and complexity of the application and its APIs. We confirm timing at scoping.
Do you retest after we fix the issues?
Yes — a remediation retest is included with every engagement, so you get confirmation that each fix actually holds.
Can we use the report for SOC 2, PCI-DSS or client assurance?
Yes. The report and optional attestation letter are written to satisfy auditor and customer requirements across SOC 2, PCI-DSS and ISO 27001.
Get a fixed-price scoping quote.
A senior tester scopes the right engagement and sends a fixed quote — no automated sales funnel, no obligation.