pentester.land· May 20, 2021· by Guilherme Keerok (@k33r0k)💰 Bounty: 500XSS via postMessage in chat.mozilla.orgOpen Original Article ↗📋 Copy Report☆ Save BookmarkTarget Program: Mozilla🎯 Vulnerability: Cross-Site Scripting (XSS)💡 Defense Fix: Enforce Context-Aware Output Encoding, strict Content-Security-Policy (CSP), and HttpOnly cookie flags.#XSS#postMessage