Saturday, July 25, 2026

How Web Cache Poisoning works — Complete Guide | Bug Bounty Course Day 29 of 60

DAY 29 BUG BOUNTY COURSE FREE ← Course Hub Day 29 of 60 · Bug Bounty Mastery Web cache poisoning turns caching infrastructure against itself. By injecting a malicious payload via an unkeyed HTTP header, I can poison the cache so every user who requests that URL gets my payload served back — no interaction required from them. It's one of the most impactful bugs in modern web security and it pays accordingly: $500 for basic reflected XSS to $25,000+…

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