Tags: redos csp-bypass 

Rating: 4.0

tl;dr

+ Capturing the flag id through redos attack in /search endpoint
+ XSS in /uuid/noteid/raw and HTML injection in /uuid/noteid
+ CSP frame-src bypass through server side redirect

Original writeup (https://blog.bi0s.in/2024/02/26/Web/VarietyNotes-bi0sCTF2024/).