Xss

Platform Hackastra CTF 2026 Difficulty Mixed (Easy → Hard) OS Jeopardy (Web, Crypto, Reverse, Misc, Forensics) Tags JWT, RS256/HS256 confusion, DSA known-nonce, Coppersmith, Feistel inversion, ARM64/x86_64 RE, WASM RE, AWS Cognito, blind SQLi, XSS, LSB stego Hackastra CTF 2026 ran as a jeopardy-style competition on CTFtime (event #3270) with fifteen challenges spanning reverse engineering, web exploitation, cryptography, forensics, and miscellaneous infrastructure bugs. The event’s name plays on the Sanskrit word अस्त्र (astra, meaning “weapon” or “missile”), and the challenges live up to it — every flag in this set rewards a specific, named technique rather than rote tooling. ...

Cross-site scripting is twenty-five years old and still topping bug bounty payouts. Modern frameworks make trivial reflected XSS rare — but the bug class evolved, not disappeared. Here’s the 2026 view. The Three Flavors Type Where the payload lives Trigger Reflected URL or form, echoed in response Victim clicks crafted link Stored Database, served back to other users Victim visits an infected page DOM-based Sink in client-side JS reads a source Anything that influences the source Stored XSS is highest impact (often worm-able). DOM XSS dominates modern SPAs because so much state lives in the browser. ...