1.3K views · 26 reactions |  Revealing the Perfect Solution to My Hard-Level XSS Filter Bypass Challenge!   Almost everything was stripped – scripts, events, javascript URIs, even spaces and slashes! ⚔️ And Still... They Beat It! Using a beautifully obfuscated payload like: Bypass payload= <svg%09onload="location=%27j\x61vascript:prompt\x2845\x29%27" hey bypassed everything and got the XSS to execute successfully! | Hack Training | Facebook