sylvie

On December 3rd 2025, Meta disclosed CVE-2025-55182 which we dubbed react2shell, an unauthenticated RCE in React Server Components.

Last weekend RITSEC hosted its annual CTF.

Competing with SLICES last weekend I helped win HITCON CTF.

In spite of my otherwise packed schedule, I managed to set aside some time this past weekend to play UMass CTF with my team L3ak.

I won 5th place in LA CTF 2025 with my team.

This is based on corgo’s writeup explaining how the Kullback test can be useful for solving cryptography CTF challenges.

This past weekend I competed in the srdnlen CTF with my team L3ak.

Last weekend my team and I competed in UofTCTF 2025, where we placed 9th overall.

This October, Huntress ran a month-long CTF with challenges releasing every day.

Since last summer, my main hobby project has been developing my reverse engineering skills by tearing apart Pokémon GO and seeing what I could learn.

Since the introduction of lucky trades in Pokemon GO, there has been an obscure mechanic known as “Guaranteed Lucky Trades” that not many people understand.

This weekend I participated in the 2023 RIT Women in Cybersecurity CTF challenge.

Introduction Over the past few months, I’ve been working on developing a system to scan and map Pokémon GO spawns (among other things) for my local community.

Prototyping For our Worlds robot, we wanted to move back to a flywheel design after running into some issues with our slingshot.

This is our team’s engineering notebook as of States 2023.

Doom on the V5 has existed for around 5 years at this point, I believe the original project was by sealj553.

V5 Addrled VEXos 1.1.2 introduced a new ability to control WS2812B addressable LED strips directly from the ADI on the V5.

After reffing at my fair share of VEX tournaments in recent years, I’ve come to determine that I’m really not a fan of the web interface that is used to start/stop the match timers.

Features Easy WS2812B Addressable LED control Accurate motor velocity measurements Template for making custom velocity controllers Many kinds of pre-built filters for general use Platform-agnostic, meaning it works with both PROS and VEXcode Installation…