How would your web app hold up against a real attacker?
Your web app probably does a lot for your business. Maybe it’s a customer portal, an online store, or an internal tool your team lives in. Either way, people trust it with their information.
That’s why small flaws matter. One missed check can let the wrong person into an account, expose data, or open the door to something worse. We find those flaws before someone else does.
We test your app the way an attacker would, with your permission and within limits we agree on up front. Then we tell you what’s actually a problem, how serious it is, and how to fix it. You won’t get a huge list of maybes.
Want to know how secure your app really is? Talk to Sunvak Boreal about what you need tested.
What it is
A web application penetration test is a controlled security check. We look for vulnerabilities in your app and try to work out how someone could really exploit them. That includes logins, permissions, sessions, input handling, business logic, APIs, and configuration.
It’s not meant to break anything. We plan the work in advance and stay inside the scope we’ve agreed, so it shouldn’t disrupt your business. And because every app is different, we shape the test around your technology, what the app does, how much risk it carries, and what you want to learn.
Why it’s worth doing
Picture what happens in your app on an ordinary day. People log in, fill in forms, upload files, and use features that talk to backend systems and APIs. If the controls behind any of that are slightly off, someone may reach data or functions they were never meant to touch.
Testing shows you where that could happen. You’ll see which logins and permissions hold up and which don’t, where data might leak, and how an attacker could move around. Your developers get clear guidance on what to fix, and you know what to tackle first.
What we check
Logins. This is your front door. We test login, password rules, account recovery, multi-factor authentication, and session handling, looking for any way in that shouldn’t exist.
Permissions. Being logged in shouldn’t mean seeing everything. We check whether users can reach data or features outside their role. That matters most when your app has different permission levels.
Input. Your app constantly takes in information from people and other systems. We look at how it handles that input and whether the right protections are in place.
Sessions. We check how sessions are managed, when they expire, and how cookies and logout behave.
Business logic. Not every flaw is a coding mistake. Sometimes a process is designed in a way that can be bent or misused. We look for those gaps too.
Sensitive data. If your app handles personal, financial, or business-critical information, we look for places where it could be exposed or reached without proper authorisation.
File uploads. If people can upload documents or images, we test how those files are handled and whether that creates risk.
APIs. Your app likely relies on APIs to connect the frontend, backend, mobile apps, and third-party services. We check authentication, authorisation, input validation, and data exposure.
How we work
1. Scope and planning. We start by listening. We learn about your app, technology, and goals, then agree on exactly what’s in scope: which applications, domains, features, environments, and accounts.
2. Application discovery. We explore how your app works and map where an attacker might look, from pages and user roles to login mechanisms, APIs, input points, and file uploads.
3. Security testing. We run controlled tests inside the agreed scope, using techniques that suit how your app is built. We draw on the OWASP Web Security Testing Guide, a widely recognised framework covering information gathering, authentication, authorisation, session management, input validation, business logic, and client-side testing.
4. Validation. Where it makes sense, we confirm whether a finding is a real problem, so you can tell the theoretical weaknesses from the ones that could hurt you.
5. Risk prioritisation. Not every issue is equally serious. We weigh how easy it is to exploit, the likely impact, which feature is affected, and the surrounding environment.
6. Reporting. For each issue, the report says what we found, where it is, why it matters, how it could be exploited, and how to fix it.
7. Fixes and retesting. Once you’ve made changes, we can test again and confirm the issues are gone, so you know the fixes worked.
What we test for
Depending on your app and scope, that can include broken access control, weak authentication, session problems, injection, cross-site scripting, security misconfiguration, sensitive data exposure, file upload vulnerabilities, business logic flaws, and API issues. We also look at insecure direct object references, client-side issues, weak security headers, information disclosure, and insufficient input validation.
The exact list depends on your app’s architecture, features, technology, and agreed scope.
Different apps, different risks
An online store and an internal HR tool face different problems, so we don’t test them the same way.
Online stores handle accounts, orders, payment-related details, and personal data. We focus on account security, access controls, checkout flows, and APIs.
Customer portals give people access to personal details, documents, and account information. We check that each user sees only what they should.
SaaS platforms serve many users, organisations, and roles at once. We look at authentication, tenant separation, authorisation, and APIs.
Internal business apps may not be public, but they can still hold sensitive information. We check whether weaknesses inside could create real risk.
Financial and data-driven apps need strong controls. We look for weaknesses that could affect confidentiality, integrity, or availability.
Scanning vs. penetration testing
A vulnerability scanner automatically flags possible weaknesses based on known patterns and configurations. A penetration test goes deeper: a person studies how your app actually behaves and validates selected weaknesses. Lots of teams use both.
Why Sunvak Boreal
Findings you can use. We care more about clear, actionable results than about a long list.
Risk in context. The same issue can mean very different things in different businesses, so we help you focus on what needs attention.
A wider team. Web app testing is often part of a bigger picture. We also cover APIs, networks, cloud, infrastructure, vulnerability assessment, and red teaming.
Plain reporting. We document findings clearly and include practical guidance on fixing each one.
We stay for the fix. Retesting checks that issues have really been dealt with.
When to test
The most useful times are before you launch a new app, release important features, or move to production. It also makes sense after major updates, big infrastructure or API changes, or a security incident. Some teams test regularly as part of their security assessments, when they’re handling sensitive customer information, or when they’re preparing for security or compliance requirements.
Apps keep changing, and testing helps you catch new weaknesses as they appear.
Who it’s for
If you run customer-facing websites, e-commerce platforms, SaaS applications, banking or financial apps, healthcare applications, employee or customer portals, business management systems, online booking platforms, apps with APIs, or anything that handles sensitive information, this is for you. We adapt the approach to your technology, size, features, and goals.
Security doesn’t stop at one test
You can’t find vulnerabilities once and forget about them. New features go in, APIs get added, infrastructure changes, and each change can bring new risks.
A penetration test lets you see your app the way an attacker would, in a controlled setting. We help you find the weaknesses, understand what they mean, prioritise them, and take practical steps to make your app stronger.
Want a team you can rely on? Contact Sunvak Boreal to talk about your app.
FAQs
What is web application penetration testing?
A controlled security assessment that finds and validates weaknesses in a web application.
Why does it matter?
It helps you catch problems in authentication, authorisation, sessions, input handling, business logic, APIs, and more before someone else exploits them.
What can it find?
That depends on scope. It can uncover access control issues, weak authentication, injection, cross-site scripting, misconfigurations, data exposure, business logic flaws, API problems, and other application security issues.
How is it different from scanning?
Scanning generally flags potential vulnerabilities automatically. A penetration test goes deeper, validating weaknesses to understand their potential impact.
How often should we test?
There’s no single schedule. It depends on how often your app changes, your risk, your technology, your business needs, and any compliance requirements.
Can you test our APIs too?
Yes, if they’re in the agreed scope. We can look at authentication, authorisation, input handling, data exposure, and related controls.
What happens afterwards?
We document and prioritise the findings, your team works on fixes, and we can retest to confirm they’re resolved.
Find the weak spots before attackers do
Your web app matters to your business, so build security testing into its life from the start. Talk to Sunvak Boreal and find out where your app needs stronger protection.