~/talk

Hack Me if You Can

Talkat DevWorld 2026 · 2026-05-07..05-08· [security]
name:Dani Coll
github:dani-coll
slides:none on file

Shows a concrete React to Shell 10/10 remote RCE: crafted react flight JSON with __proto__.constructor.constructor executes payload and runs execSync. Demonstrates exploitation with Burp Suite exploit payload against a downgraded Next.js app, listing files and killing the server. Shows a separate CORS demo where vulnerable crypto app with Access-Control-Allow-Credentials:true lets a phishing page exfiltrate session data. Recommends Dependabot/Renovate, JFrog proxy, DOMPurify, and waiting 48+ hours before auto-updating.

AI-written summary · about

  1. 0:00Developers and security
  2. 1:45React Server Components flaw
  3. 7:25React to Shell exploit demo
  4. 9:56Frameworks vs XSS
  5. 12:05Access control risks
  6. 15:59Supply chain attacks
  7. 20:31CORS dangers
  8. 22:18CORS exploit demo
  9. 27:15Key takeaways
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