# 2023 - [DEF CON 31 CTF && Midnight Sun CTF Finals 2023](https://infosec.zeyu2001.com/2023/def-con-31-ctf-and-and-midnight-sun-ctf-finals-2023.md): My first hacker summer camp experience 🏖️ - [From XS-Leaks to SS-Leaks Using object](https://infosec.zeyu2001.com/2023/from-xs-leaks-to-ss-leaks.md): Using nested objects, lazy loading and responsive images to leak data - [Regular Expressions Are Hard](https://infosec.zeyu2001.com/2023/regular-expressions-are-hard.md): How to avoid common pitfalls. - [ReadiumJS Cloud Reader — Everybody Gets an XSS!](https://infosec.zeyu2001.com/2023/readiumjs-cloud-reader-everybody-gets-an-xss.md): Stumbling upon an XSS paradise. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://infosec.zeyu2001.com/2023.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.