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Home›Capabilities›Offensive Security & Resilience Engineering

Offensive Security & Resilience Engineering

Realistic offensive simulations and deep technical testing that expose exploitable paths before attackers do.

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Home›Capabilities›Offensive Security & Resilience Engineering›Web Application Security Testing

Web Application Security Testing

Web applications are the most exposed attack surface in any enterprise. We go beyond automated scanning - manual exploitation reveals what scanners miss.

What We Assess

OWASP Top 10 Security

Validate application code against the standard OWASP Top 10 vulnerability classes.

Session & Auth Security

Test authentication mechanics, session timeouts, and token validation flaws.

Business Logic Integrity

Verify application integrity against complex business logic manipulation attacks.

Injection Prevention

Test client-side and server-side inputs to prevent SQL, XSS, and command injections.

Privilege Escalation

Audit access controls to prevent horizontal and vertical privilege escalation.

Data & Crypto Protection

Check for exposure of sensitive data in transit or at rest and weak crypto algorithms.

How QuasarCyberTech Delivers

A structured delivery sequence that converts assessment insights into measurable resilience outcomes.

01

Reconnaissance

Map the application architecture and enumerate the total attack surface.

02

Vulnerability Identification

Combine automated baseline scanning with deep manual testing.

03

Exploitation

Execute safe proof-of-concept attacks to demonstrate true business impact.

04

Reporting

Deliver risk-rated findings alongside developer-specific remediation guidance.

Industry Application

QuasarCyberTech | FinTech & Digital Payments Industry

FinTech & Digital Payments

Securing complex transaction workflows, mobile banking apps, and financial APIs.

QuasarCyberTech | E-commerce & Digital Industry

E-commerce & Digital

Protecting consumer data and payment integrations from logic flaws and injection attacks.

QuasarCyberTech | SaaS & Technology Industry

SaaS & Technology

Validating multi-tenant architectures and complex web application boundaries.

Powered by the QuasarCyberTech ecosystem

Platform intelligence that accelerates delivery, strengthens execution, and improves measurable outcomes.

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Penetration Testing as a Service Platform

Our Web Application Security Testing engagements are accelerated by QRGT, combining platform intelligence with advisory and execution delivery.

  • Continuous penetration testing workflow
  • Centralized findings and remediation tracking
  • Governed collaboration across red-blue teams
Explore QRGT
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Frequently Asked Questions

Answers to common questions for Web Application Security Testing.

We use the OWASP Top 10 as a foundational framework to hunt for the most critical and common web application vulnerabilities. This ensures that standard attacks like injection, broken access control, and cryptographic failures are thoroughly mitigated. By following this globally recognized standard, we provide a baseline of security that protects against the most frequent web-based threats.

Flaws in authentication and session management allow attackers to hijack user accounts and assume their identities. We rigorously test your password policies, token generation, cookie security, and timeout mechanisms to ensure session integrity. Securing this layer is critical for protecting user data and preventing unauthorized access to the core functionality of your application.

Business logic flaws exploit the legitimate workflow of an application to achieve a malicious outcome, such as manipulating prices or bypassing payment steps. Because these flaws are unique to your app's specific design, automated scanners miss them, making our manual expert analysis essential. Identifying these logic gaps prevents attackers from gaming the system in ways your code technically allows.

We attempt to inject malicious code into your application's input fields to see how the backend and frontend handle the data. If successful, SQL injection could allow access to your database, while Cross-Site Scripting (XSS) lets attackers execute scripts in your users' browsers. Our testing ensures that all inputs are properly sanitized and validated to block these dangerous attack vectors.

Broken access control is consistently a leading vulnerability because it allows users to act outside of their intended permissions. We verify that users cannot bypass restrictions to view sensitive data, escalate their privileges, or modify data belonging to other accounts. Robust access control testing is the only way to ensure that your multi-tenant or multi-user environment remains secure.

Related Capabilities

Explore adjacent capability pillars commonly delivered alongside this engagement stream.

QuasarCyberTech | Cloud & Infrastructure Security

Cloud & Infrastructure SecurityCloud Security

Kubernetes security, cloud posture management (CSPM), and hybrid infrastructure hardening.

QuasarCyberTech | Managed Detection, Response & SOC Operations

Managed Detection, Response & SOC OperationsManaged Defense

Managed SOC, monitoring, response, threat hunting, and human-layer simulation services for persistent defense.

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