Member-only story
Guide to Finding and Exploiting Web Cache Poisoning
Why you should learn Web Cache Poisoning? | Bug Bounty Essentials by Karthikeyan Nagaraj

Web Cache Poisoning is an advanced web vulnerability where an attacker injects harmful data into a website’s cache, allowing malicious content to be served to unsuspecting users. This vulnerability targets caching systems like reverse proxies or content delivery networks (CDNs), tricking them into storing and delivering a poisoned version of a web page.
In this guide, we’ll cover the process of finding and exploiting Web Cache Poisoning, explain how it works, and offer techniques for ethical testing. Whether you’re a bug bounty hunter or a penetration tester, this guide will help you understand how to identify and exploit this fascinating vulnerability.
Table of Contents
- Understanding Web Cache Poisoning
- Setting Up Your Tools
- Step-by-Step Process to Find Web Cache Poisoning
- Exploiting Web Cache Poisoning
- Mitigation and Prevention
1. Understanding Web Cache Poisoning
Before diving into the technical steps, let’s first understand what Web Cache…