Train to become OSWE certified

WEB-300 (OSWE) - Advanced Web Attacks and Exploitation

The OffSec WEB-300 builds on basic web security knowledge and teaches you advanced techniques for analyzing and exploiting complex web applications. You will learn to identify even deeply hidden vulnerabilities and carry out sophisticated attack scenarios. Through hands-on labs, you will develop a deep understanding of modern web architectures and advanced attack techniques.

Included services

Your added value with the Red & Blue Alliance

  • Training with a strong practical orientation
  • Individually selected OffSec license (Course & Cert, Learn One, Learn Enterprise)
  • Professional team of trainers with many years of practical experience in IT security companies
  • Course language English – trainers are at least bilingual (DE/EN)
  • Catering included during the training days (for public face-to-face training courses)
  • Trainer support included – even after the course: Our Discord channel provides you with direct exchange with trainers, professional support and targeted guidance on your way to certification.

Aims of the training

WEB-300 (OSWE)

The training enables you to analyze complex web applications in depth and exploit challenging vulnerabilities.

  • You identify advanced web vulnerabilities
  • You combine several attack techniques (chaining)
  • You analyze complex authentication and logic errors
  • You exploit modern web technologies and APIs
  • You develop your own attack strategies

This allows you to realistically test even demanding applications and evaluate security vulnerabilities at expert level.

Target group & requirements

Target group

The course is aimed at experienced participants who want to take their web pentesting skills to an advanced level.

  • Advanced penetration testers
  • Web security specialists
  • Security analysts with a focus on application security
  • Experienced developers with a focus on security

Ideal for you if you already have experience with web vulnerabilities and want to deepen your knowledge.

Prerequisites

Solid prior knowledge of web security is required for the course.

  • Sound knowledge of web technologies (HTTP, sessions, APIs)
  • Experience with common web vulnerabilities (e.g. OWASP Top 10)
  • Confident use of tools such as Burp Suite
  • Basic knowledge of scripting or programming (an advantage)
  • Practical experience in web pentesting (recommended)

Knowledge at WEB-200 level is strongly recommended.

Seminar content

Contents of the WEB-300 (OSWE)

The focus is on advanced attack techniques and complex vulnerabilities in modern web applications.

  • Advanced Authentication Attacks
    Analysis and bypassing of complex authentication and session mechanisms
  • Business Logic Flaws
    Exploitation of logical errors in applications
  • Advanced Injection Techniques
    Advanced injection attacks and circumvention of protection mechanisms
  • API Attacks
    Analysis and attack on REST and web APIs
  • Deserialization & Advanced Exploitation
    Exploitation of complex vulnerabilities such as deserialization bugs
  • Client-Side Attacks (Advanced XSS)
    Advanced XSS techniques and client-side attacks
  • Bypassing security controls
    Bypassing WAFs, filters and protection mechanisms
  • Attack Chaining & Post-Exploitation
    Combination of several vulnerabilities into complex attack chains

The aim is to gain a holistic understanding of complex web applications, creatively exploit vulnerabilities and implement realistic attack scenarios.

The right license for your requirements

With Course & Cert, Learn One and Learn Enterprise, we offer three different learning models – from targeted certification to comprehensive, scalable training. The following overview shows the most important differences at a glance.

Course & Cert

The classic entry option for a single course.

  • 1 course + certification
  • 90 days Lab access
  • 1 examination attempt
  • Download the course materials

Ideal for you if you want to prepare specifically for certification

👉 In short: focused, affordable, but not very flexible

Learn One

Your annual subscription with significantly more options.

  • 1 200 or 300 level course + certification
  • 365 days Lab access
  • 2 exam attempts
  • Access to exercise environments, challenge labs and learning paths
  • Download the course materials

Ideal for you if you want to build up several skills or broaden your base

👉 In short: flexible, comprehensive, highly practice-oriented

Learn Enterprise

The corporate solution for structured team training.

  • Unlimited choice of courses
  • 6 examination attempts/certification per year
  • 365 days Lab access
  • Central management of users, progress and licenses
  • Reporting & analytics for training progress
  • Individual learning paths for different roles (e.g. SOC, Pentest, Blue Team)
  • Scalable for larger teams or entire departments

👉 In short: scalable, controllable, ideal for strategic training

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