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Comprehensive technical writeup documenting multiple race condition vulnerabilities discovered across major platforms (Facebook, Cobalt, Keybase, Mega, DigitalOcean) with detailed exploitation steps showing how concurrent requests can bypass security controls like email confirmation, coupon redemption limits, and invitation systems. Author provides methodology for identifying and exploiting race conditions in web applications with real-world examples and tool references.

Josip Franjković Cobalt.io Facebook Mega.nz DigitalOcean Keybase Starbucks Medium LastPass HackerOne LetsEncrypt w3af Defuse Security BlueHat
josipfranjkovic.com · devanshbatham/Awesome-Bugbounty-Writeups · 18 hours ago · details