I Followed the Best Practices and Still Got Hacked
summary
Shows concrete failures: a middleware that validates a value from the query string while handlers use the JSON body leading to negative-tip via dual sources and financial loss; a unified auth guard that reads cookie then JSON producing account takeover via mixed auth; and an Apache HTTP Server bug where URL decoding order and double-decoding enable path traversal (reported severity ~9.x) — demonstrates the exact code assumptions, where decoding/auth/validation run, how many times they run, and the exploit that succeeds.
AI-written summary · about
chapters (7)
- 0:00Introduction
- 1:02Security flaws in modern apps
- 4:33Validation out of handler
- 9:09Unifying auth flaws
- 15:08Vulnerabilities from refactoring
- 20:21Preventing such flaws
- 21:26Q&A








