pentester.land· Mar 31, 2018· by Valeriy Shevchenko (@Krevetk0Valeriy)💰 Bounty: 300How I hacked one cryptocurrency serviceOpen Original Article ↗📋 Copy Report☆ Save BookmarkTarget Program: PayKassa🎯 Vulnerability: Cross-Site Scripting (XSS)💡 Defense Fix: Enforce Context-Aware Output Encoding, strict Content-Security-Policy (CSP), and HttpOnly cookie flags.#Blind XSS#Reflected XSS#CSRF