This is a summary. The full analysis — root cause walkthrough, complete payload, exploitation framework, forensic artifacts, and patch diffing — lives at blog.deviannt.com. TL;DR: React's Flight deserializer evaluates any object with a .then method as a Promise, regardless of its actual type. An attacker poisons Object.prototype.then through a crafted multipart POST, forcing the server to execute
Solo coding practice gets stale. I wanted something with real stakes — a platform Dev-Battle. Create or join a lobby Problem is broadcast to both players Write and submit your code Sandboxed runner judges the output AI feedback is shown in the arena XP and leaderboard rankings update live Real-time rooms — synchronized match state via WebSockets, low-latency updates Sandboxed execution — isolated
Most Web3 tutorials give you a token contract and stop there. I went furtherand built the full stack: a Solidity ERC-20 token, a Hardhat test suite, and a React dApp with MetaMask integration and transaction history. Here is every technical decision I made. GitHub: https://github.com/Carter254g/harambee-dapp HarambeeCoin (HBC) is a custom ERC-20 token. The dApp lets you connect MetaMask, check you
The codebase was old. React 16 with class components everywhere. React Router v3 with routes-as-children. A webpack 4 config that had been edited by a dozen people over five years and contained loaders nobody could explain. The dev server took 45 seconds to come up. Hot reload was 8 seconds on a good day, 20 on a bad one. The production build was 6 minutes. CI deploys took 14 minutes end to end. I
🤔 Why v0 Output Alone Isn't Production-Ready If you've used v0.dev to spin up a landing page, you've probably hit the same wall on the next step. The component looks clean inside v0, but the moment you drop it into your Next.js project the design tokens drift, dark mode breaks, metadata is empty, and Lighthouse scores land in the 60s. This isn't a v0 limitation — it's that v0's output is "desig
Hi everyone, Konrad and Kacper from Software Mansion here! 👋 A quiet week — no big headlines — but still a couple of solid articles and releases in the React ecosystem. On the React side, the WIP React Compiler in Rust is being tested at Meta. We also have a 18-month retrospective on the React Compiler, a deep dive into how React streams UI, and a step-by-step guide for migrating from Radix UI to
React State Feels Simple — Until It Doesn't React state management often feels more complex than it needs to be. Selectors, memoization, dependency arrays… how state updates, not just what the state is. Recently, I tried Valtio — and it made me rethink some of these patterns. In many React setups, especially as apps grow, state logic tends to spread: UI state and business state get mixed we add