This writeup details innovative ‘syntax confusion’ techniques exploiting how two or more components can interpret the same input differently due to ambiguous or inconsistent syntax rules.

Alex Brumen aka Brumens provides step-by-step guidance, supported by practical examples, on crafting payloads to confuse syntaxes and parsers – enabling filter bypasses and real-world exploitation.

This research was originally presented at NahamCon 2025.