Web Application Penetration Testing

Secure Your Application. Protect Your Users.

Our Web App Penetration Testing involves manual, human-led exploitation to find complex logic flaws, data leaks, and OWASP vulnerabilities before hackers do.

Your web application is the face of your business. A single vulnerability can lead to a massive data breach. We provide rigorous, manual Web Application Penetration Testing designed to break your application logic, bypass authentication, and validate your security posture against the world’s most sophisticated threats.

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See What Our Clients Are Saying

Our clients consistently share that our collaborative partnership and transparent communication help them build stronger security programs.

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HAVEN6 has become our go-to partner for serious cloud security and penetration testing.

They’ve helped our clients harden AWS and Azure configurations, identify risky misconfigurations, and validate issues through focused penetration testing on networks, web apps, and APIs.

Ramin Lamei

TechCompass

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We have enjoyed working with HAVEN6. They were able to help us on some long-term agreements for pen testing.

Their personnel and management are easy to work with.

We look forward to our next project with them!

Joshua Weathers

Sugpiat Defense

The Drivers of Web Pen Testing Requirements

Security is a continuous requirement for modern software and web applications. You need a professional assessment if:

Compliance Mandates

SOC 2, ISO 27001, PCI DSS, HIPAA/HITRUST, and other standards mandating web app pen testing.

Vendor Due Diligence

Your enterprise customers (B2B) require a clean pentest report before buying your SaaS product.

Major Releases

You are pushing a major code update (v2.0) or new feature set and need to ensure no new bugs were introduced.

Agile/DevSecOps

You want to integrate manual security testing into your CI/CD pipeline to catch bugs before production (saving $).

Types of Web App Pen Tests We Perform

We tailor our approach based on the level of information you provide, ensuring the app test meets your specific security objectives.

Test Type	Description
Black Box Testing	Testers are given no prior knowledge of your application’s internal structure or source code.
Grey Box Testing	A hybrid approach where testers are given limited information, such as user login credentials.
White Box Testing	Our team is provided with full access to source code, architecture diagrams, and other internal documentation.
API Pen Testing	Testing the underlying REST, SOAP, or GraphQL endpoints for BOLA and mass assignment vulnerabilities.

Get Free Pricing Information & Sample Web App Pentest Report

What Our Web Application Pentest Includes

We align our testing with the OWASP Application Security Verification Standard (ASVS).

Injection Attacks

Probing every input field and API endpoint to test for SQL Injection (SQLi), Command Injection, and LDAP Injection.

Broken Authentication

Stress testing authentication mechanisms for weak passwords, session fixation, and credential stuffing.

IDOR

Simulating an attack where User A can view User B’s invoices by changing an ID number in the URL or API call.

Cross-Site Scripting (XSS)

Test resilience by attempting to inject malicious scripts into input fields, search bars, and URL parameters.

Security Misconfiguration

Checking for default passwords, verbose error messages, and open cloud storage buckets.

Web App Penetration Testing Deliverables

We don’t just drop a PDF bomb and disappear; we become your temporary strike team, helping to beef up security where it counts.

Executive Summary

A high-level risk profile is the one-slide, one-paragraph verdict that every stakeholder actually reads (e.g., “Is the app safe to launch?”).

Technical Vulnerability Report

Exact HTTP Requests and Responses to show the raw traffic of the attack, along with clear, step-by-step reproduction instructions that lead to replication.

Remediation Guidance

Providing specific code snippets and architectural recommendations tailored to your technology stack. We give devs the exact building blocks they need.

Clean Retest Report

Once your team has applied the necessary patches, we perform a comprehensive re-test to verify that every vulnerability has been resolved.

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Web App Penetration Testing Certifications

Our team holds industry-recognized certifications that reflect hands-on expertise across offensive security, cloud, applications, and compliance.

Offensive Security Certified Professional (OSCP)

Certified Information Systems Security Professional (CISSP)

GIAC Penetration Tester (GPEN)

GIAC Cloud Penetration Tester (GCPN)

CompTIA Security+, Network+, A+, Pentest+

GIAC Certified Incident Handler (GCIH)

AWS Certified Cloud Practitioner (CCP)

Microsoft AZ-900, SC-900

Certified Cloud Security Professional (CCSP)

Certified Ethical Hacker (CEH)

Burp Suite Certified Practitioner (Apprentice)

Web Application Penetration Tester (GWAPT)

Web App Penetration Tester (eWPT)

Systems Security Certified Practitioner (SSCP)

Palo Alto PSE Certifications

Why Clients Choose Us for Web App Pentesting

80% of our time is using advanced tools like Burp Suite and custom scripts to uncover complex logic flaws scanners can’t find.

Manual Logic Experts

Automated tools cannot find logic flaws (like bypassing a payment). Our humans can. We spend 80% of our time on manual testing.

Modern Tech Stack

We are experts in conducting security testing on modern frameworks like React, Angular, Vue.js, Node.js, and Python/Django.

Burp Suite Pros

Our team utilizes the advanced features of Burp Suite Professional, combined with custom Python scripts, to dig deeper than the competition.

Ready to Secure Your App’s Weakness?

Partner with us to secure your web applications, protect your data, and build resilient security.

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Web Application Testing: FAQs

Learn more information about the most frequently asked questions

What is Web Application Penetration Testing?

Web application penetration testing is a security exercise where ethical hackers attempt to find and exploit vulnerabilities in a web application. The goal is to identify security weaknesses from an attacker’s perspective. Unlike automated scanning, a pen test involves manual, human-led exploration to uncover complex business logic flaws, chained exploits, and other critical issues that scanners often miss.

Our methodology is heavily guided by industry-leading frameworks like the OWASP Top 10, which lists the most critical security risks to web applications, including:

Injection flaws (e.g., SQL, NoSQL, OS Command)
Broken Authentication
Cross-Site Scripting (XSS)
Insecure Deserialization
Security Misconfiguration

Who needs Web Application Penetration Testing?

SaaS Companies: Ensure your multi-tenant platform is secure and your clients’ data is segregated and protected.
E-commerce Platforms: Protect sensitive payment card information (PCI) and customer PII from theft.
Financial Institutions (FinTech): Meet stringent regulatory requirements and secure sensitive financial transactions and data.
Healthcare Organizations: Ensure HIPAA compliance and protect electronic Protected Health Information (ePHI).
Startups & Tech Companies: Build security into your product from the ground up to gain a competitive edge and investor confidence.
Any organization undergoing a digital transformation.

What if we release code updates frequently (CI/CD)?

We offer Pentesting as a Service (PTaaS). Instead of one big annual test, we integrate with your pipeline and perform targeted manual tests on every major release or sprint.

How much does a web app pen test cost?

The cost of a web application penetration test varies based on the size and complexity of the application, the testing methodology (black, white, or grey box), and the overall scope. We provide a detailed, custom quote after an initial consultation to understand your specific needs.

How long does a web application penetration test take?

A typical web app pen test can take anywhere from one to four weeks, depending on the application’s complexity. The process includes planning, active testing, and comprehensive report generation.

What do we receive at the end of the test?

You will receive a detailed report containing an executive summary for management and a technical deep-dive for your developers. The report includes all vulnerabilities found, their risk ratings (e.g., Critical, High, Medium, Low), proof-of-concept evidence, and clear, actionable recommendations for remediation.

Do you re-test after we fix the vulnerabilities?

Yes, re-testing is a critical part of our process. After you’ve remediated the identified vulnerabilities, we perform verification testing (usually included in our engagement) to ensure the fixes are effective and haven’t introduced new security flaws.

Is our application and data safe during the test?

Absolutely. All testing is performed by our trusted, in-house security professionals under a strict non-disclosure agreement (NDA). We use dedicated, secure testing environments and take extreme care to avoid disruption to your live services.

Do you test the API as well?

Yes. The web application is just the frontend. The API is where the data lives. We intercept the API calls (REST/GraphQL) to ensure the backend is secure.