We prove the risk in your web app, not just report it.
We test your web applications by hand, exploiting the flaws in authentication, access control, and business logic that scanners miss. Every finding ships with a working proof of concept and developer-ready remediation. Once you fix it, we retest for free.
- Prioritized Findings Report
- Working Proof of Concept per Finding
- Developer-Ready Remediation Guidance
- Executive Summary
- Free Confirmation Retest
Manual, exploit-driven web app pentesting: findings you can reproduce and fix.
Automated scanners flag patterns; attackers exploit context. A pricing endpoint that trusts a client-supplied field, an object ID that isn't checked against the logged-in user, a password-reset flow that can be replayed: these are the flaws that lead to real breaches, and they rarely show up in a scan report. Our web application VAPT is manual and exploit-driven: experienced testers work through your app the way an adversary would, chaining weaknesses until they reach data or functions they shouldn't.
We test against the OWASP Top 10 and well beyond it: broken access control (IDOR/BOLA), injection, SSRF, authentication and session handling, and the business-logic abuse that is unique to your application and its APIs. The output is not a raw tool dump. It is a prioritized set of reproducible findings, each with a proof of concept and developer-ready remediation guidance, rated by the severity and exploitability that actually matter to your business.
Whether you're preparing for a customer security review, hardening a product before launch, or establishing a regular testing cadence, an engagement gives you evidence (not assumptions) about where your application can be broken and exactly what it takes to fix it.
What we test and deliver
Depth over checklists. Every capability below is hands-on work performed and validated by our engineers.
Broken Access Control (IDOR/BOLA)
We test every authorization boundary (object references, tenant isolation, role escalation, and forced browsing) to find where users can reach data or actions that aren't theirs.
Authentication & Session Security
Login flows, MFA, password reset, JWT and token handling, session fixation, and timeout logic: the mechanisms that gate everything else in your application.
Injection & Input Handling
SQL, NoSQL, command, template injection, and cross-site scripting (XSS) across inputs, headers, and parameters, including blind and second-order variants.
Server-Side Request Forgery (SSRF)
Probing for SSRF and its escalation into cloud metadata access, internal service reach, and remote code paths common in modern cloud-hosted applications.
Business-Logic Abuse
Workflow, pricing, quota, and multi-step process testing: the application-specific flaws no scanner understands because they require reasoning about intent.
API & Integration Security
REST and GraphQL endpoints tested for object- and function-level authorization, mass assignment, rate limiting, and data exposure, aligned to the OWASP API Security Top 10.
Who it's for
- SaaS and product teams shipping web applications that handle sensitive customer, health, or financial data
- CTOs and engineering leads who need real exploitability evidence before a launch or major release
- CISOs and security teams answering customer security questionnaires and vendor due-diligence reviews
- Founders entering enterprise sales cycles where a credible third-party pentest is a procurement requirement
- Teams that have already run automated scans and need manual validation of what's genuinely exploitable
Why HACK KAP
- Manual and exploit-driven, not scanner-and-forward: we confirm what's actually exploitable and prove it, rather than passing along raw tool output.
- A free confirmation retest is included in every engagement, so you get evidence the risk is genuinely closed, not just reported.
- Findings are written to be fixed: reproducible PoCs and developer-level remediation guidance, not vague recommendations.
- Methodology aligned to OWASP WSTG, ASVS, and PTES, with API testing mapped to the OWASP API Security Top 10: standards your auditors and customers already recognize.
- Led by practitioners with deep offensive-security, reverse-engineering, and secure-development backgrounds who also build and run live CTF and hands-on lab platforms.
Exactly what you receive
No vague promises. Each engagement produces concrete, shareable artifacts your team, auditors, and customers can rely on.
Prioritized Findings Report
A technical report ranking every confirmed vulnerability by severity and exploitability, with affected endpoints, root cause, and business impact, written to be understood by both engineers and decision-makers.
Working Proof of Concept per Finding
Each vulnerability includes reproducible steps, request/response evidence, and where relevant a working exploit, so your team can confirm the issue firsthand rather than take our word for it.
Developer-Ready Remediation Guidance
Specific, code-level fix recommendations and secure-design guidance for each finding, cross-referenced to the relevant OWASP controls, not generic 'apply patches' advice.
Executive Summary
A concise, non-technical overview of overall risk posture, recurring themes, and priorities, suitable for leadership, boards, or sharing with customers under NDA.
Free Confirmation Retest
After your team remediates, we re-test each finding to verify the fix holds and issue an updated report reflecting the closed items, included in the engagement, not billed separately.
Live Remediation Debrief
A walkthrough of the findings with your engineers to answer questions, clarify exploitation paths, and agree on remediation priorities and sequencing.
Our engagement methodology
A transparent, repeatable process. You always know what's happening, what's next, and where you stand.
- 01
Scoping & Rules of Engagement
We define targets, environments, test accounts, roles, and constraints together, and agree on testing windows, escalation contacts, and out-of-scope elements in writing before any testing begins.
- 02
Reconnaissance & Mapping
We enumerate the application's surface (endpoints, parameters, roles, and data flows), building a complete map of functionality and trust boundaries so testing is methodical rather than random.
- 03
Manual Exploitation & Testing
Testers work through authentication, access control, injection, SSRF, and business logic by hand, chaining findings to demonstrate real impact, guided by OWASP WSTG and PTES rather than a checklist alone.
- 04
Analysis & Reporting
Each confirmed finding is validated, rated for severity and exploitability, documented with a proof of concept, and paired with remediation guidance in a report built for action.
- 05
Debrief & Remediation Support
We walk your team through the findings, answer questions, and remain available to clarify exploitation paths while your developers implement fixes.
- 06
Free Retest & Verification
Once fixes are deployed, we retest the affected findings to confirm they're closed and issue an updated report reflecting your improved security posture.
Questions, answered
The things teams most often ask before an engagement. Don't see yours? Just reach out.
A short discovery call and access to the application (or a description of its features, user roles, and tech stack) lets us size the engagement. Scope is driven by the number of distinct roles, the endpoint and API surface, and whether we test authenticated flows, third-party integrations, and business logic. We confirm targets, environments, and any exclusions in writing before testing starts.
Web Application Security (VAPT)
Find the flaws before an attacker does. Book a scoping call and we will size the right web application test with you.