Xiarch Web Application Penetration Testing is a professional security service that identifies vulnerabilities in web applications through manual and automated testing methodologies. The service is delivered by CERT-certified penetration testing professionals who assess applications for security weaknesses. The service employs multiple testing approaches including black box analysis through web application scanning, white box analysis via static code analysis, automated penetration testing using software composition analysis, and manual penetration testing conducted by security experts. Testing focuses on identifying vulnerabilities listed in the OWASP Top 10, including injection flaws, authentication weaknesses, session management issues, broken access controls, security misconfigurations, database interaction errors, input validation problems, and application logic flaws. The assessment methodology follows a structured process: defining scope, information gathering using OSINT tools and techniques, enumeration through automated scripts and tools, attack and penetration using both manual and automated security scans, comprehensive reporting with risk analysis and remediation steps, and discussion with remediation support including patch verification. Deliverables include a detailed security assessment report with remediation steps, security certificates after patch verification, and access to qualified security consultants. The service is designed to help organizations comply with regulatory requirements and proactively identify security gaps before attackers exploit them.