Uncover vulnerabilities in your web applications

Your web apps are often your most exposed asset. We dive deep into their security, checking for flaws in logins, permissions, and data handling.

Talk to an expert

Web Application Penetration Testing

Identify vulnerabilities in your web applications

Our web application testing helps you uncover real vulnerabilities before attackers do. We assess your apps from both unauthenticated and authenticated perspectives to identify risks like broken access controls, input validation flaws and insecure session handling. You get clear, actionable insights to strengthen security and reduce risk.

Uncovers critical flaws before attackers do
Evaluates application behavior across user roles
Delivers clear reports with practical fixes

Service detail

Web application penetration testing that exposes real risks

How secure is your web applications from real-world attacks? Our web application penetration testing simulates malicious behavior to uncover flaws before threat actors do.

Find the flaws before attackers do

Go beyond automated scans

Our expert-led testing digs deep into your web application’s logic, roles, and input handling which things tools often miss. Starting from a zero-access perspective, we simulate escalating privileges, tampering with data, and breaking access controls.

Discover hidden vulnerabilities across login and user roles
Test for OWASP Top 10 issues and business logic flaws
Assess how securely your web application handles sensitive data

Our delivery process

How is it delivered

Our web application tests are tailored to your application’s architecture and business logic but follow a consistent and transparent methodology from start to finish.

Scope and prepare

We define the testing boundaries, user roles, and environment providing engagement clarity.

Simulate real-world attacks

Our testers mimic attacker behavior, probing for input flaws, access controls issues, and other bugs

Report and remediate

We will provide a clear, prioritised report with findings, impact ratings, and actionable steps to secure your application

Benefits

Real-world testing built for real applications

We test your web application like an attacker would, but with the insight of an experienced security partner. Our goal is to help you identify real risks and build safer, stronger applications.

Real testing, real results

We go beyond checklists and automation. Our team finds logic flaws, insecure flows and realistic attack paths that scanners often miss.

Context-aware testing

Every application is different. We tailor our testing to match your architecture, user roles and business logic so you get relevant, high-impact finds

Reports that make sense

We deliver clear, actionable findings with step-by-step guidance. No fluff, no filler, just what your team needs to fix issues fast.

What comes next

Expand your security coverage

Web application testing is just one step toward stronger security. We are here to support your next move, whether it is fixing issues, retesting, or helping your team build more securely.

Scoped engagements tailored to your application’s needs
Debrief sessions with clear, actionable findings
Support for remediation, secure coding guidance, or follow-up testing

Talk to an expert

Executive and Board Security Governance Training

We train executives and boards on their cybersecurity oversight role — focusing on risk framing, accountability, and key governance responsibilities.

Instructor Led ISO27001 Training

This instructor-led course equips participants with the knowledge and skills needed to become certified to lead, plan, and conduct ISO 27001 audits.

Frequently asked questions

From risk assessment to rapid response - we’re with you every step of the way.

What is web application penetration testing?

Web application penetration testing simulates real-world attacks to uncover vulnerabilities in your app, such as broken access controls, injection flaws, and insecure session handling - helping you fix them before threat actors exploit them.

Why is penetration testing important for web applications?

Your web apps are often your most exposed assets. Penetration testing helps you identify hidden weaknesses in login flows, user permissions, and data access that attackers could exploit - protecting your business-critical systems and data.

How is this different from using automated tools?

Automated scanners miss many logic and input handling flaws. Our expert testers simulate attacker behaviour with no prior knowledge of the app, identifying subtle issues that only human-led testing can detect.

What types of vulnerabilities can be found?

We identify flaws like broken authentication, input validation issues, privilege escalation paths, and OWASP Top Ten vulnerabilities - providing clear, actionable remediation advice for each issue found.

How is Bastion’s web app testing delivered?

Our testing follows a transparent, two-step approach: first defining the test scope and user roles, then simulating real-world attacks from both unauthenticated and authenticated perspectives. You’ll receive a detailed report with practical fixes.