---
id: 5520
title: "Bypassing Web Cache Poisoning Countermeasures"
source_domain: portswigger.net
source_url: "https://portswigger.net/research/bypassing-web-cache-poisoning-countermeasures"
published_at: "2022-09-29T07:36:00Z"
tags: ["web-security", "cloudflare", "portswigger", "waf-bypass", "akamai", "web-cache-poisoning", "fastly"]
phying_url: "https://phying.com/item/5520"
lang: en
---

# Bypassing Web Cache Poisoning Countermeasures

## Summary

James Kettle examines and bypasses vendor countermeasures to web cache poisoning from Cloudflare, Akamai and Fastly, flagging pitfalls like cacheable block pages enabling DoS.

## Intelligence Metadata

- **Sources:** portswigger.net
- **Published:** 2022-09-29T07:36:00Z
- **Original:** https://portswigger.net/research/bypassing-web-cache-poisoning-countermeasures
- **Phying News:** https://phying.com/item/5520