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I Followed the Best Practices and Still Got Hacked

Talkat DevWorld 2026 · 2026-05-07..05-08· [security, web-platform]
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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

  1. 0:00Introduction
  2. 1:02Security flaws in modern apps
  3. 4:33Validation out of handler
  4. 9:09Unifying auth flaws
  5. 15:08Vulnerabilities from refactoring
  6. 20:21Preventing such flaws
  7. 21:26Q&A
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