Web Application Pentesting
NetSPI’s web app pentesting reduces organizational risk and improves application security through our leading security experts manually testing your web applications with commercial, open source, and proprietary tools.
Industry Leading Web Application Security Testing
NetSPI evaluates the strength and resilience of authentication mechanisms, input validation, application logic, data exposures, API security, and more. In addition to comprehensive coverage of the OWASP Web App Top 10 Vulnerabilities, our experts deliver actionable guidance for remediating vulnerabilities and improving your web app security posture.
Comprehensive OWASP Web App Top 10 Coverage
Information Gathering
- App architecture & deployment model analysis
- Review of application inventory, API documentation, and technology stack
- Credential, role, environment scope validation
Testing & Evaluation
- Anonymous & Authenticated user testing
- Manual & automated vulnerability testing
- Workflow, business logic, data exposure
- Access control verification across user roles
Analysis & Reporting
- Business impact assessment
- Specific remediation guidance
- Technical verification evidence
- Executive summary & detailed context
5 Key Web App Pentesting Focus Areas
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1 ) Authentication & Access Controls
NetSPI evaluates the strength and resilience of authentication and authorization mechanisms that protect your web applications. This includes uncovering broken access controls, privilege escalation paths, weak session management, and flaws in multi-factor authentication implementations. Our testing identifies where users can gain unintended access to sensitive functionality or data.
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2 ) Input Validation & Application Logic
Web applications are frequently targeted through unvalidated or improperly sanitized user inputs. NetSPI tests for injection risks alongside business logic flaws that attackers can abuse to manipulate workflows, bypass controls, or trigger unintended system behavior.
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3 ) Data Exposure & Secure Communications
NetSPI evaluates encryption effectiveness, data handling practices, and exposure risks in APIs, session tokens, cookies, and storage mechanisms. Our experts identify insecure data flows, misconfigurations in TLS, and opportunities for attackers to intercept or extract protected data.
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4 ) Application Architecture
Modern web applications rely heavily on distributed components such as APIs, microservices, cloud services, and third-party integrations. NetSPI performs in-depth testing of these architectural elements to uncover insecure authentication flows, excessive permissions, misconfigured integrations.
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5 ) API Security
NetSPI tests for configuration weaknesses across your web application’s API endpoints. We apply traditional and advanced techniques to identify injection vectors, broken object-level access controls, architectural weaknesses.
Anonymous User Testing
- Test application & System layers
- Multiple Scanners & Manual verification
Authenticated User Testing
- Credentialed users by type
- Automated & Manual processes
- Gain access to restricted functionality
- Elevate privileges
Web App vs API Pentesting
API
Web App
Manual Testing
Manual Testing
Automated Scanning
Automated Scanning
Catalog or Sample File
Catalog or Sample File
API Architecture (REST, SOAP, GraphQL, etc.)
API Architecture (REST, SOAP, GraphQL, etc.)
Authentication/Authorization Testing
Authentication/Authorization Testing
Business Logic Testing
Business Logic Testing
User Interface Vulnerabilities
User Interface Vulnerabilities
Dependency Vulnerabilities
Dependency Vulnerabilities
Resource Consumption Vulnerabilities
Resource Consumption Vulnerabilities
Inventory Management Vulnerabilities
Inventory Management Vulnerabilities
API vs Web App Checklist
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What does NetSPI test for?
- Injection Vulnerabilities
- Broken authentication
- Sensitive data exposure
- Authenticated Users by Type
- Anonymous (Blackbox) Testing
- XML external entities (XXE)
- Broken access control
- Security misconfiguration
- Cross-site scripting (XSS)
- Insecure deserialization
- Components with known vulnerabilities
- Insufficient logging and monitoring
You Deserve The NetSPI Advantage
Human Driven
- 350+ pentesters
- Employed, not outsourced
- Wide domain expertise
AI –
Enabled
- Consistent quality
- Deep visibility
- Transparent results
Modern Pentesting
- Use case driven
- Friction-free
- Built for today’s threats
Wep App – Featured Resources
How NetSPI won Mission Fed Credit Union’s business with its engagement, deliverables, and pricing model
In today’s cybersecurity landscape, application security is a top priority for Mission Fed Credit Union. See how NetSPI helps ensure security meets the highest standards.
Magic Bytes – Identifying Common File Formats at a Glance
Learn from the security experts at NetSPI how to identify common file formats at a glance when it comes to magic bytes. Read the blog.
