Web Application Penetration Testing

Test your web applications for security vulnerabilities with a comprehensive security pen test

Web Application Penetration Testing

In the digital age, securing web applications is not just a necessity; it’s imperative for safeguarding sensitive data and maintaining trust. At Cyber Legion, we specialize in advanced web application penetration testing, certified by CREST for the EMEA region, to fortify your applications against evolving threats.

Our testing protocol is meticulously designed to probe deep into your web applications, uncovering vulnerabilities that go beyond the surface-level risks. Leveraging the globally recognized frameworks of the Open Web Application Security Project (OWASP) ASVS and Testing Guide, we don’t just identify vulnerabilities; we understand their root cause. From coding oversights to critical issues like broken authentication and sophisticated injection attacks, our methodical approach ensures no stone is left unturned.

As a CREST-approved provider in the EMEA region, Cyber Legion offers unparalleled API penetration testing services. Our expertise helps organizations reinforce their cyber defenses, providing comprehensive support to improve API security. Our services not only identify vulnerabilities but also equip you with the knowledge to enhance your security posture, ensuring robust protection against potential risks.

 Elite Web Application Penetration Testing Solutions

Comprehensive Web Application Penetration Testing Services

Our team of experienced security professionals provides comprehensive web application penetration testing services to identify vulnerabilities and ensure the security of your web applications. Trust us to safeguard your business and user data with our cutting-edge testing methodologies.

Expert Web Application Penetration Testing

Don’t leave the security of your web applications to chance. Our expert team of penetration testers specializes in identifying vulnerabilities and providing actionable recommendations to safeguard your business against cyber attacks. Let us help you protect your valuable business assets today.

Advanced Web Application Penetration Testing

For organizations with complex web applications and environments, our advanced web application penetration testing services provide deep insight into potential vulnerabilities and risks. Trust our experienced team to provide the specialized testing you need to ensure the security of your digital assets.

Comprehensive Security Testing for Web Applications

Whether you’re a small startup or a large enterprise, our comprehensive web application penetration testing services can help you identify vulnerabilities and protect your business from cyber threats. With our customized testing methodologies, we provide tailored solutions to meet your specific needs.

Ensure the Security of Your Web Applications

Our web application penetration testing services simulate real-world cyber attacks to identify vulnerabilities and test the security of your web applications. With our cutting-edge tools and techniques, we provide actionable recommendations to safeguard your business against even the most sophisticated threats.

Advanced Scanning and Exploitation

Don’t wait until it’s too late. Stay ahead of cyber threats with our proactive web application penetration testing services. Our experienced team of security professionals can help you identify vulnerabilities before they’re exploited, providing peace of mind and ensuring the security of your digital assets.

Web Application Testing based on OWASP Security Framework Methodology

Web application security testing is essential for defending web applications from a wide range of threats, integrating both manual and automated strategies to identify vulnerabilities. Cyber Legion is at the forefront of this domain, utilizing frameworks like the OWASP Top 10, OWASP ASVS, and OWASP Testing Guide. Our methodology involves an in-depth examination of the web application’s architecture, focusing on areas such as user authentication, input validation, and session management across different platforms including traditional web applications, single-page applications, and mobile web interfaces.

We understand the complexities involved in assessing web applications, especially those built with modern technologies and architectures. Our approach is tailored to effectively address these challenges, aiming to uncover and mitigate vulnerabilities in both live and pre-production environments, thus minimizing the risk of security breaches. Cyber Legion is dedicated to bolstering the security of your web application, safeguarding your data and digital assets against emerging cyber threats.

Application Penetration Testing Phases

The Exploitation Phase

Utilizing the insights gained from the initial phases, the exploitation phase involves actively attempting to breach the application or system. This phase tests the application’s defenses by exploiting identified vulnerabilities to gain unauthorized access or control, simulating an attacker’s approach to uncovering and extracting sensitive data

Reporting & Remediation

After successfully identifying vulnerabilities, penetration testers compile detailed reports for the client’s engineering teams. These reports outline the vulnerabilities found, the potential impact on the application, and recommendations for remediation. This phase is crucial for initiating the process of securing the application against identified risks

The Reconnaissance Phase

The initial phase involves thorough information gathering about the target application to facilitate strategic planning for the penetration test. This phase can be conducted through both active and passive methods. Active reconnaissance involves direct interaction with the target, whereas passive reconnaissance leverages indirect methods. Techniques such as social engineering and dumpster diving fall within this phase, aimed at collecting valuable information without alerting the target to the impending test

The Scanning Phase

Following reconnaissance, the scanning phase employs technical tools to probe the target application for potential entry points. This phase focuses on identifying open ports, internet gateways, and vulnerabilities within systems. Tools are used to generate a vulnerability assessment report, detailing the weaknesses discovered and suggesting potential avenues for exploitation

OWASP Top 10 – 2021

  • Broken Access Control

    This category escalates to the top spot, showing that an average of 3.81% of applications tested exhibited one or more vulnerabilities associated with Broken Access Control, marking it as the most critical web application security risk in 2021. This risk category, encompassing 34 Common Weakness Enumerations (CWEs), led with over 318,000 instances, indicating its widespread prevalence.

  • Cryptographic Failures

    Advancing to second place, Cryptographic Failures, formerly recognized as Sensitive Data Exposure, shifts focus from symptoms to the root cause - failures in cryptography. This change highlights the category's direct impact on sensitive data protection and system security, emphasizing the essential role of cryptographic integrity

  • Injection

    Injection vulnerabilities move to third, with a significant testing rate (94% of applications) and an incidence rate peaking at 19%. This category, inclusive of Cross-site Scripting (XSS), reported 274,000 occurrences across 33 CWEs, underlining its criticality in application security

  • Insecure Design

    A newly introduced category, Insecure Design, addresses the foundational need for secure architectural and design practices. Emphasizing "shifting left," it calls for enhanced threat modeling, secure design principles, and architectures, acknowledging that secure designs are pivotal for preemptive risk mitigation.

  • Security Misconfiguration

    Climbing from the sixth position, Security Misconfiguration highlights the challenges in managing highly configurable software environments. With an average incidence rate of 4.5% and over 208,000 CWE occurrences, this category underscores the necessity for diligent configuration management and security best practices

  • Vulnerable and Outdated Components

    Previously focusing on known vulnerabilities in components, this category rises to underscore the ongoing challenge of managing component vulnerabilities, despite a lack of specific Common Vulnerability and Exposures (CVEs) tied to its CWEs. Its advancement reflects the critical need for vigilant component security and risk assessment

  • Identification and Authentication Failures

    Evolving from Broken Authentication, this category now broadens to include identification failures, maintaining its significance in the top 10 while benefiting from the growing adoption of standardized authentication frameworks

  • Software and Data Integrity Failures

    This new category emphasizes the risks associated with unverified software updates, data integrity, and CI/CD pipeline processes. Highlighting one of the highest impact ratings from CVE/CVSS data, it showcases the critical nature of integrity verification in software and data management

  • Security Logging and Monitoring Failures

    Advancing from its previous position, this category now encompasses a broader range of logging and monitoring deficiencies, highlighting the challenges in ensuring effective security incident detection, alerting, and forensics capabilities

  • Server-Side Request Forgery (SSRF)

    Newly added based on community input, SSRF represents a risk category with a lower incidence rate but significant exploit and impact potential. It underscores the security community's concern for SSRF vulnerabilities, emphasizing their importance in comprehensive security assessments

Benefits of Working with Cyber Legion

Our Commitment to Your Security

Cyber Legion is your trusted partner in enhancing and protecting your organization’s digital integrity. With our comprehensive security services, including penetration testing and remediation across applications, mobile apps, APIs, IoT devices, and networks, we’re dedicated to fortifying your defenses against cyber threats

Proactive Defense Across All Fronts

Our Secure Client Portal opens the door to an array of specialized security testing services. By adopting best practices and reputable security frameworks, we minimize operational disruption and provide insightful feedback throughout the testing process. Stay informed and secure with our targeted approach to application, mobile, API, IoT, and network security

Navigating Cybersecurity Challenges Together

At Cyber Legion, we believe in a partnership approach to cybersecurity. Our experienced team is committed to offering expert support and guidance, ensuring your needs are met with precision and professionalism. Whether you require a one-time assessment or ongoing services, we’re here to assist you in navigating the complex landscape of cybersecurity

Securing Your Business Continuity

Trust Cyber Legion to keep you one step ahead of cybersecurity threats. Our clear, comprehensive reporting identifies vulnerabilities and outlines actionable steps for improvement, empowering your organization to achieve and maintain the highest levels of security. Let us be your guide in the ever-evolving world of cybersecurity, safeguarding your organization’s future


Application penetration testing (also known as a pen testing or pen testing) is an authorized security test on an application to identify vulnerabilities that may be present and could be exploited.

Web application pen testing attempts to uncover security vulnerabilities stemming from insecure development practices in the design, coding, and publishing of web applications or a website.

With Cyber Legion services you can achieve all your security goals in one platform. Penetration Testing and Vulnerability Management combined in one unified view. Live events for all penetration testing findings and vulnerability management results with bug tracking, Risk dashboards, Ticketing systems etc.


Web Application Penetration Testing Service FeaturesSupported
OWASP Top 10 Vulnerabilities Testing
Cross-Site Scripting (XSS) and SQL Injection Testing
Session Management and Authentication Testing
Security Misconfiguration and Vulnerable Components Check
Business Logic Vulnerability Identification
API Security Testing
File Upload Vulnerabilities Testing
Encryption Strength Assessment
Third-Party Services and Libraries Security Evaluation
CORS Policy and HTTP Security Headers Review
Compliance with Web Security Standards

Penetration tests (or pen tests) are attacks on your companies’ software and hardware systems, carried out by ‘ethical hackers’ to expose your system’s vulnerabilities. One example is a web application pen test. Web apps, browsers and plug-ins can house sensitive financial or personal data, so hackers are increasingly putting their efforts towards gaining access to them. The test would examine the endpoint of every web application.

The time that penetration testing takes depends on the size and complexity of your organization’s system structure, as well as the scope of the test itself. For the ‘average’ company, a network penetration test should take around three days. For a merchant processing millions of credit cards a year, for example, a pen test will take over a week, or possibly two.

The penetration testing cost depends on the facts identified during scoping, such as the agreed time, goals, technical resources, approach, and remedial support.

Security Testing Pricing list refence 

Going through the results of pen tests provides a great opportunity to discuss plans going forward and revisit your security posture overall. Seeing pen tests as a hoop to jump through and simply checking it off a list as “done” won’t improve your security stance. It’s important to plan time for a post-mortem to disseminate, discuss, and fully understand the findings. Additionally, relaying these results with actionable insights to decision makers within the organization will better emphasize the risk that these vulnerabilities pose, and the positive impact that remediation will have on the business. With review, evaluation, and leadership buy-in, pen test results can transform into action items for immediate improvements and takeaways that will help shape larger security strategies.

Your application and data will be safe. We would prefer to test using test accounts that can be destroyed after we’ve finished testing.

For White-Box penetration testing assessments we would recommend that all user levels are tested depending on the size of the user base and the potential damage that could be caused.

We can test on your production environment for a realistic assessment or test on your staging environment to remove the potential for any disruption. Vulnerabilities discovered in staging can then be retested on the production application.

This depends on the environment that we’re testing. If we are testing an application in production then there could be a risk to the data, but we don’t aim to affect any live information.

The OWASP Security Knowledge Framework is an open source web application that explains secure coding principles in multiple programming languages. The goal of OWASP-SKF is to help you learn and integrate security by design in your software development and build applications that are secure by design.

Our penetration tests will help you:

  • Gain real-world insight into your vulnerabilities;
  • Keep untrusted data separate from commands and queries;
  • Develop strong authentication and session management controls;
  • Improve access control;
  • Discover the most vulnerable route through which an attack can be made; and
  • Find any loopholes that could lead to the theft of sensitive data.

Discover, Analyze, Prioritize, Track, Visualize & Report

- Penetration Testing Services- Penetration-Testing-Findings

CREST Approved Penetration Testing Services

Secure your business with top-tier expert knowledge and advanced Penetration Testing (CREST Approved)

Let's collaborate to build and maintain secure businesses

Cyber Legion convert threats into trust by leveraging Advanced Technology and Expertise in Product Security and Business Continuity. Our approach integrates Secure by Design, comprehensive Security Assurance, Red Teaming, Adversary Emulation and Threat Intelligence, Penetration Testing, and Expert Security Advisory and Consultancy. We ensure compliance with meticulous security assurance and detailed documentation, from design to post-market.

As a CREST-certified Penetration Testing provider in the EMEA region, we are committed to the highest security standards.Cyber Legion - CREST Approved