Web Application Penetration Testing

What Is Web Application Penetration Testing?

Web Application Penetration Testing is a hands-on security assessment that simulates real-world attack scenarios against your web applications. It helps identify weaknesses in your application’s code, infrastructure, and logic that could be exploited by threat actors.

• How secure your application is against unauthorized access
• Whether critical vulnerabilities like injection or authentication flaws exist
• How your session and access controls are managed
• If your configuration and codebase introduce unnecessary risk

Each vulnerability is documented in a clear, actionable report complete with threat modelling, risk levels, and tailored remediation steps.

What Do We Test?

We cover all the OWASP vulnerabilities during testing such as:

• SSL/TLS implementation reviews
• Identification of injection points (e.g., SQL, XSS, command injection)
• Authentication and password management weaknesses
• Session hijacking and fixation issues
• Authorization and access control flaws
• Misconfigured servers or databases
• Input handling and validation errors
• Business logic bypasses or abuse scenarios

Why It’s Critical

Today’s web applications are more than just websites they’re core platforms that handle sensitive data, drive customer interaction, and often serve as the entry point to broader infrastructure. We can help you:

• Meet compliance mandates such as GDPR, PCI DSS, and ISO 27001, SOC2
• Show due diligence to clients, auditors, investors and partners
• Educate internal teams about common risks through exposure to real testing scenarios
• Prevent financial loss, reputational damage, and data breaches from exploited flaws

Our Testing Approach

We use industry standard tools like Burp Suite, Nmap, DirBuster, and custom scripts to identify and exploit security flaws in web applications. Our process begins by using the application as a standard user to understand its intended functionality, user roles, and business logic. This helps us map out attack surfaces and identify trust boundaries.

We then move into reconnaissance and mapping, identifying exposed endpoints, hidden parameters, and third-party integrations. Using tools like Burp Suite, we intercept and manipulate requests to test for common and complex vulnerabilities such as broken access control, injection flaws, insecure session handling, and improper input validation. Where applicable, we chain vulnerabilities together to demonstrate real-world impact.

Throughout, we maintain a focus on context, understanding not just where a weakness exists, but how it could be realistically exploited by a threat actor. The result is not just a list of issues, but a clear picture of risk aligned with your application’s functionality, users, and environment.

Real World Example

A client’s web application included functionality to generate RDP connection files via a URL-based mechanism. During testing, we discovered that by modifying specific URL parameters, it was possible to generate links that redirected users to arbitrary external hosts, including servers under our control.

This effectively turned the application into an open redirector, which could be abused in phishing campaigns to trick users or administrators into connecting to malicious servers under the guise of a legitimate workflow. Left unresolved, this could have facilitated credential harvesting, session hijacking using fake RDP recievers.

Engagement Process

1. Scoping & Quotation: Drop us an email, and we’ll either arrange a scoping call or send over our scoping forms. Based on the information you provide, we’ll prepare a quote for the work. Once everything is agreed upon, we’ll send through the necessary paperwork and agreements, and then schedule the assessment.
2. Assessment Phase: On the scheduled day, our team begins testing. If we detect any critical or high risk vulnerabilities during the assessment, we alert you immediately to help you respond quickly.
3. Results & Reporting: You’ll receive a professionally written report detailing each vulnerability, its business impact, technical detail, and precise guidance for remediation.
4. Free Retesting: Once you’ve resolved the major findings, we offer complimentary retesting for high and critical issues—so you can close the loop with confidence.