performing-web-application-penetration-test

name	performing-web-application-penetration-test
description	Use when performing systematic security testing of web applications following the OWASP Web Security Testing Guide (WSTG) methodology to identify vulnerabilities in authentication, authorization, input validation, session management, and business logic. The tester uses Burp Suite as the primary interception proxy alongside manual testing techniques to find flaws that automated scanners miss.
domain	cybersecurity
tags	["web-application-pentest","OWASP","Burp-Suite","WSTG","application-security","money"]
subdomain	penetration-testing
version	1.1.0
author	oyi77
license	Apache-2.0
nist_csf	["ID.RA-01","ID.RA-06","GV.OV-02","DE.AE-07"]

Performing Web Application Penetration Test

Overview

Web application penetration testing is the #1 billable cybersecurity service for independent consultants. Every business with a website, SaaS product, or internal web app is a potential client — and most of them know they need testing but don't know where to start.

This skill follows the OWASP Web Security Testing Guide (WSTG) methodology and covers the full engagement lifecycle: scoping, reconnaissance, automated scanning, manual exploitation, and professional reporting. You deliver a vulnerability assessment that translates technical findings into business risk the client can act on.

When to Use

Trigger phrases:

• "performing web application penetration test"
• "Performs systematic security testing of web applications following the OWASP Web"
• "web app pentest"
• "test my website for vulnerabilities"
• "security audit for our SaaS"

Use cases:

• Testing web applications before production deployment to identify exploitable vulnerabilities
• Conducting compliance-driven security assessments (PCI-DSS requirement 6.6, SOC 2 Type II)
• Validating remediation of previously identified web application vulnerabilities during retesting
• Assessing third-party web applications before integration into the organization's environment
• Evaluating custom-developed web applications where automated scanning alone is insufficient

Do not use against web applications without written authorization, against production systems during peak traffic hours without explicit approval, or for denial-of-service testing of web infrastructure.

When NOT to Use

• When you lack proper authorization (signed Statement of Work)
• For production systems during peak hours without explicit change window approval
• When the client needs a full red-team engagement or source code audit instead
• When the application uses protocols you haven't validated (e.g., thick client binaries, non-HTTP services)

Money-Making Overview

Buyer Persona: Small-to-medium business owners (10-200 employees), startup CTOs, e-commerce operators, agencies that build client websites, SaaS founders preparing for compliance certification.

These buyers know they need a pentest but:

• Can't afford $15K-50K enterprise vendors (Rapid7, CrowdStrike)
• Don't know the difference between a vulnerability scan and a real pentest
• Want a simple answer: "Is my app safe? What do I fix first?"
• Usually need a report for compliance (PCI, SOC 2, ISO 27001) or a customer questionnaire