OffSec Authorised Partner Expert · Web Offensive 2026 WEB-300 OSCE3 Path

OSWE
Offensive Security Web Expert

The most respected advanced web-exploitation credential. WEB-300 — white-box source-code review, modern web-application chain compromise, custom-payload development, deserialisation, prototype pollution, blind SQLi at depth.

Duration: 10 days / 80 hrs
💻Format: Bootcamp + 90-day Lab Access
🌐Delivery: On-site · Virtual · Hybrid
Pass rate: 78%
📅Next intake: 19 May 2026
OSWE training session at Nexperts Academy
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White-box review

Read source. Find chain. Write exploit. The OSWE workflow.

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Modern web exploitation

Deserialisation, prototype pollution, SSRF, blind SQLi at depth

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Custom-payload dev

Write your own exploit script for each chain. No tools, no Burp scanner.

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Authentication bypass

Logic flaws, session fixation, race conditions, JWT confusion

What this course is

Where you stop running
Burp scanner.

OSWE is the most respected advanced web-exploitation credential in the global offensive-security market. The exam is a 47-hour 45-minute hands-on white-box engagement: you receive source code for two web applications, find the exploitation chain, write a single-script exploit and document it. Burp's active-scan does not help you here.

At Nexperts, OSWE is delivered as a 10-day intensive bootcamp aligned with WEB-300 (current 2026 syllabus). We stand up a WEB-300-style lab with 8 source-included vulnerable applications across PHP, Node.js, .NET, Java, Python and Ruby on Rails. By day 10 you've found and chain-exploited 6 applications end-to-end, written 6 custom exploit scripts, and run a 47-hour mock exam.

OSWE is a different beast from OSCP. There is no scanner. No automation. Just you, source code, and the question: what do you have to prove to land a working exploit before sundown? It is the cert that signals you can find vulnerabilities before they're discovered.

The 2024+ WEB-300 update sharpened the modern web stack — Node.js prototype pollution, modern .NET deserialisation chains, GraphQL exploitation, JWT confusion, and authentication-logic flaws. We mirror the current WEB-300 syllabus exactly.

Who should take this course
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Senior pentesters

OSCP holders going web-deep. OSWE is the recognised next step.

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Web-application security engineers

Building real-time review and exploitation skills.

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Bug bounty hunters

Targeting source-disclosed programmes. OSWE turns recon into chain.

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AppSec architects

Adding offensive-side credibility. CSSLP + OSWE is a rare combo.

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Senior developers

Who can already read 4+ stacks of source. OSWE turns reading into exploitation.

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Red team operators

Web-app exploitation is a foundational red-team skill.

Prerequisites
OSCP (or comparable real pentest experience) strongly recommended
Comfortable reading source code in 2+ of: PHP, Node.js, .NET, Java, Python
Strong understanding of HTTP, web frameworks and authentication
Comfortable with Bash + Python for scripting exploits
OSWE without OSCP is technically possible but unforgiving. We recommend OSCP first or our 5-day OSWE-Prep bootcamp.