UPDATED for 2021 with new and refreshed course Modules

Now enjoy more flexibility and go at your own pace with a Learn subscription.

Earn your OSWE


About WEB-300 | Buying Options | Course info | Testimonials | Details | Pricing

Advanced Web Attacks and Exploitation (WEB-300)

Advanced Web Attacks and Exploitation

Advanced Web Attacks and Exploitation (WEB-300) is an advanced web application security review course. We teach the skills needed to conduct white box web app penetration tests.

With the 2021 update, WEB-300 now features three new modules, updated existing content, new machines, plus refreshed videos.

Students who complete the course and pass the exam earn the Offensive Security Web Expert (OSWE) certification, demonstrating mastery in exploiting front-facing web apps. The OSWE is one of three certifications making up the new OSCE3 certification, along with the OSEP for advanced pentesting and the OSED for exploit development.

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What’s New?

Three new modules with focus on vulnerability discovery:

  • Cross-Origin Resource Sharing (CORS) with CSRF and RCE
  • JavaScript Prototype Pollution
  • Advanced Server Side Request Forgery

Updated Tools and Methodology module:

    • Includes more Source Code Analysis
    • Includes tutorial on Remote Debugging
  • One new machine & application for each of the three new module
  • Updated video content and quality

How to buy WEB-300



  • 90 days of lab access
  • One exam attempt
  • Self-guided


Learn One


  • WEB-300 Course
  • 365 days of lab access
  • Two exam attempts
  • Plus exclusive content

What do you get with a Learn Subscription?

OffSec Courses
OffSec Courses

Take one or all of the industry-leading OffSec online courses*, with videos, labs and content. New content, courses and updates added frequently!

PEN-100 - Fundamentals
Fundamental Content

Our prerequisite courses PEN-100, SOC-100 and WEB-100 are all included with a Learn subscription.

Kali Linux Revealed
Kali Linux Revealed (KLR)

Access to the KLR course, plus KLCP exam.
$249 value!

OffSec Wireless Attacks (PEN-210)
OffSec Wireless Attacks (PEN-210)

The updated WiFu course is sold only through a subscription.
$450 value!

Proving Grounds
Proving Grounds Practice

Enjoy an entire year of PG Practice.
$199 value!

Exam Attempts

Earn your certification! Receive 2 attempts with Learn One.

* Applies to online courses only. AWE (EXP-401) is only taught in live classes.

Course Info


Students will learn how to:

  • Perform a deep analysis on decompiled web app source code
  • Identify logical vulnerabilities that many enterprise scanners are unable to detect
  • Combine logical vulnerabilities to create a proof of concept on a web app
  • Exploit vulnerabilities by chaining them into complex attacks

About the exam


Who is the course for?

  • Experienced penetration testers who want to better understand white box web app pentesting
  • Web application security specialists
  • Web professionals working with the codebase and security infrastructure of a web application

Course prerequisites

  • Comfort reading and writing at least one coding language
  • Familiarity with Linux
  • Ability to write simple Python / Perl / PHP / Bash scripts
  • Experience with web proxies
  • General understanding of web app attack vectors, theory, and practice



Review by 0xklaue.


The AWAE/OSWE Journey: A Review

Review by Donavan

"The AWAE/OSWE Journey: A Review"

Course Details


WEB-300 focuses on white box web app pentest methods. The bulk of your time will be spent analyzing source code, decompiling Java, debugging DLLs, manipulating requests, and more, using tools like Burp Suite, dnSpy, JD-GUI, Visual Studio, and the trusty text editor. The course covers the following topics in detail. For a more complete breakdown of the course modules, please refer to the WEB-300 syllabus.

  • Cross-Origin Resource Sharing (CORS) with CSRF and RCE
  • JavaScript Prototype Pollution
  • Advanced Server Side Request Forgery
  • Web security tools and methodologies
  • Source code analysis
  • Persistent cross-site scripting
  • Session hijacking
  • .NET deserialization
  • Remote code execution
  • Blind SQL injections
  • Data exfiltration
  • Bypassing file upload restrictions and file extension filters
  • PHP type juggling with loose comparisons
  • PostgreSQL Extension and User Defined Functions
  • Bypassing REGEX restrictions
  • Magic hashes
  • Bypassing character restrictions
  • UDF reverse shells
  • PostgreSQL large objects
  • DOM-based cross site scripting (black box)
  • Server side template injection
  • Weak random token generation
  • XML external entity injection
  • RCE via database functions
  • OS command injection via WebSockets (black box)
  • Performing advanced web app source code auditing
  • Analyzing code, writing scripts, and exploiting web vulnerabilities
  • Implementing multi-step, chained attacks using multiple vulnerabilities
  • Using creative and lateral thinking to determine innovative ways of exploiting web vulnerabilities
  • 10-hour video series
  • PDF course guide (410+ pages)
  • Private labs
  • Active student forums
  • Access to virtual lab environment
  • Closed Captioning is available for this course



All prices in US dollars. Register for WEB-300 or contact our training consultants if you're purchasing for a team or organization.

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Register for WEB-300