Illustration WTF depicting the concept of bypassing Web Application Firewalls (WAFs) using Cross-Site Scripting (XSS) payloads. The image shows a digital shield representing a WAF, with various code snippets symbolizing XSS payloads, some deflected and some penetrating the shield, against a backdrop of digital elements like binary code and network nodes.

XSS WAF Bypass: One Payload for All – Mastering Web Application Firewalls (WAFs)

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Cross-Site Scripting (XSS) attacks continue to challenge web application security, and bypassing Web Application Firewalls (WAFs) remains a critical focus for cybersecurity professionals. This blog explores advanced XSS payload techniques that can evade WAF defenses, using creative manipulations like HTML entities to outsmart even the most robust WAFs. Discover the methods and strategies to develop ‘universal’ payloads that work across different platforms and systems, enhancing penetration testing and bug bounty hunting efforts.

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