18 articles tagged #API Security
Your Django REST Framework API works perfectly after login, but users suddenly receive 401 Unauthorized errors while actively using the application. In most cases, JWT authentication isn't broken—the access token has simply expired without a proper refresh strategy.
ChatGPT can draft secrets rotation scripts in minutes, but the default output often creates dangerous downtime gaps where old credentials expire before services pick up the new ones. Here's how to prompt your way to safe, zero-downtime rotation logic.
Your HTML sanitizer has an allowlist. You trust it. But stored XSS still lands in production — because allowlists are only as good as their edge-case handling. Here's exactly where they fail and how to close the gaps.
ChatGPT can scaffold RBAC middleware fast, but generic prompts produce generic code — and in access control, generic means gaps. Here's how to prompt your way to a production-ready implementation that won't leak permissions.
ChatGPT's default CORS configs reach for wildcards the moment the prompt gets vague — and wildcards in production are a real security problem. Here's how to prompt precisely and get configs you can actually ship.
File upload endpoints are a reliable attack surface. Path traversal lets attackers overwrite server files; MIME spoofing sneaks malicious content past your type checks. Here's how to close both holes properly.
Supabase Auth is fast to ship but ties you to their platform. Lucia gives you full control but demands you write more plumbing yourself. Here's how each actually performs on DX, flexibility, and real-world lock-in risk.
WebSockets skip the browser's same-origin policy for connections — and attackers exploit that gap to send commands or steal data through a victim's live socket. Here's how the attack works and exactly how to stop it.
Your HMAC signature check looks correct, but if it uses a plain equality operator, an attacker can measure response times to forge tokens byte by byte. Here's how timing attacks work and how to fix them in every major language.
RBAC looks solid on paper, but subtle misconfigurations regularly leave admin routes, API endpoints, and sensitive settings open to users who should never see them. Here's how to find and fix the gaps before an attacker does.
IDOR vulnerabilities let attackers swap an ID in a URL and access someone else's data. They're easy to miss in code review and devastatingly simple to exploit. Here's how to find them, fix them, and keep them out of production.
Storing JWTs in localStorage feels convenient until an XSS vulnerability exposes every token on your site. Here's how to migrate your authentication to HttpOnly cookies — and why it matters more than you think.