pentester.land· Sep 4, 2023· by Paul Gerste💰 Bounty: 750

Code Vulnerabilities Put Proton Mails at Risk

Target Program: Proton Mail

🎯 Vulnerability: Cross-Site Scripting (XSS)

💡 Defense Fix: Enforce Context-Aware Output Encoding, strict Content-Security-Policy (CSP), and HttpOnly cookie flags.

#XSS#Sandbox bypass#CSP bypass#Parsing issue