---
id: 4897
title: "Web application firewall bypass"
source_domain: yeswehack.com
source_url: "https://www.yeswehack.com/learn-bug-bounty/web-application-firewall-bypass"
published_at: "2022-10-11T13:55:00Z"
tags: ["bug-bounty", "pentesting", "web-security", "waf", "cloudflare", "payloads", "bypass", "akamai"]
phying_url: "https://phying.com/item/4897"
lang: en
---

# Web application firewall bypass

## Summary

Bypassing web application firewalls after a flaw is found: abusing regex and blacklist weaknesses, normalisation quirks and frontend/backend filter collisions to slip payloads past WAFs.

## Intelligence Metadata

- **Sources:** yeswehack.com
- **Published:** 2022-10-11T13:55:00Z
- **Original:** https://www.yeswehack.com/learn-bug-bounty/web-application-firewall-bypass
- **Phying News:** https://phying.com/item/4897