OWASP Top 10 Web Application Security Risks 2025 Edition

Welcome to OWASP Top 10 Web Application Security Risks (2025 Edition) — a comprehensive, hands-on course designed to help you understand, exploit, and defend against the most critical security risks affecting modern web applications.

In this course, we take a practical deep dive into the OWASP Top 10 categories, beginning with Broken Access Control, where you will learn how attackers bypass authorization mechanisms to access restricted resources. You will then explore Cryptographic Failures, understanding how weak encryption, poor key management, or improper implementation can expose sensitive data.

We thoroughly examine Injection vulnerabilities, including SQL Injection and Cross-Site Scripting (XSS), through step-by-step demonstrations and hands-on labs. You will not only see how these attacks work in real-world scenarios but also how to properly mitigate them.

The course also covers Insecure Design, helping you identify architectural weaknesses that introduce risk even before code is written. You will explore Security Misconfiguration, Vulnerable and Outdated Components, and Identification and Authentication Failures, gaining practical insight into common mistakes in deployment, dependency management, and access control systems.

Additionally, we discuss Software and Data Integrity Failures and Security Logging and Monitoring Failures, focusing on how attackers evade detection and how organizations can strengthen visibility and response capabilities.

You will also study Server-Side Request Forgery (SSRF) attacks and learn how misconfigured internal services can be exploited. Special attention is given to improper error handling and unexpected system behaviors that may unintentionally leak sensitive information or disrupt application logic.

Finally, this course compares the evolution of the OWASP Top 10 framework from 2021 to 2025, ensuring you understand emerging security trends and modern threat landscapes.

By the end of this course, you will have practical offensive and defensive skills in web application security, enabling you to identify vulnerabilities, simulate real-world attacks, and implement effective countermeasures — making you a stronger cybersecurity professional.