This article is about write-up for the CCE 2021. there is only one web challenges, which contain XSS via Prototype Pollution bug

This article is about write-up for the DownUnderCTF 2021. there is only three web and one pwn, misc challenges, all of which contain SSRf and SQL Injection and CSRF bug

This article is about write-up for the Whitehat Contest 2021. there is only three web and one pwn, misc challenges, all of which contain Time Based SQL Injection and RCE and bug

This article is about write-up for the InCTF 2021. there is only one web challenge, which contain XS-Leak via Download Trigger bug

This article is about write-up for the InCTF 2021. there is only one web challenge, which contain XS-Leak via cache probing bug