BLIND XSS
From simple dorks to advanced metadata injection, here’s a complete walkthrough of the techniques I use to hunt down one of the most lucrative web vulnerabilities.
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Introduction
Blind XSS (BXSS) is a stealthy form of cross-site scripting where payloads are stored in places you can’t see immediately, such as logs, admin panels, email templates, file metadata and other backend systems, and only execute later when those systems render the data. Because there’s no instant feedback, BXSS hunting depends on reliable out-of-band callbacks and systematic testing. In this article I’ll share my full playbook: finding targets with dorks, injecting and tracking payloads (JPG EXIF, SVG, HTML), header tricks and Burp Match & Replace, scalable scanning and practical triage & disclosure to turn silent callbacks into high-impact reports.
Prerequisites / tools I use
- A Blind XSS receiver/dashboard (your OOB server; many hosted services exist, use one you control for testing).
- A browser extension for payload injection/tracking (I use a “Blind XSS Manager” configure it with your server…