Security playbooks for AI builders.
Master vulnerability remediation, understand real-world exploits, and test fixes with deterministic CLI commands across Next.js, Express, and Nginx.
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AI Code Smells & Common Pitfalls
Securing web applications developed with AI coding tools (Cursor, Lovable, v0, Bolt, Claude Code).
API & Modern Web Defenses
Bulletproof defenses for REST, GraphQL, CORS origins, and defensive HTTP security headers.
Injection & Input Sanitization
Stopping SQL injection, Cross-Site Scripting (XSS), and Server-Side Request Forgery (SSRF).
Identity, RBAC & Multi-Tenancy
Hardening session management, multi-tenant database isolation, and fine-grained RBAC.
The Developer's Guide to Auditing AI-Generated Web Applications
How AI code assistants systematically introduce security vulnerabilities, and a practical pre-deployment verification workflow.
Fixing Permissive Wildcard CORS with Authenticated Credentials
Why Access-Control-Allow-Origin: * combined with credentials enables complete session hijacking, and how to configure strict origin whitelists.
Preventing Exposed API Keys & Secrets in AI-Generated Frontend Bundles
Understanding why environment variables with NEXT_PUBLIC_ or VITE_ are baked into client JS, and how to establish strict secret isolation.
Defeating Server-Side Request Forgery in Webhooks & Data Fetchers
How unvalidated backend HTTP fetch calls expose internal cloud metadata (169.254.169.254) and private networks, and how to implement socket-level IP pinning.
Securing Next.js Server Actions Against Missing Authorization
Server Actions are publicly accessible POST endpoints by default. Here is how to prevent unauthenticated execution and broken access control.
Preventing SQL Injection in Raw Queries and Modern ORMs
Why string concatenation in raw queries and unsafe ORM raw clauses ($queryRawUnsafe) lead to database compromise, and how to use parameterized queries.
Stored & Reflected Cross-Site Scripting (XSS) in Modern React & Next.js
React escapes strings in JSX, but dangerouslySetInnerHTML, javascript: URLs, and unescaped SSR hydration payloads still introduce critical XSS.
Configuring Bulletproof HTTP Security Headers (CSP, HSTS, X-Frame-Options)
A practical guide to implementing Content-Security-Policy, Strict-Transport-Security, and framing protections in Next.js and Nginx.
Enforcing Bulletproof Tenant Isolation & IDOR Defenses in Multi-Tenant SaaS
Preventing Insecure Direct Object References (IDOR) by coupling every database query with the caller active organization ID.
Cryptographically Secure Session Management with Token Hashing
Why raw session tokens must never be persisted in databases, and how to implement SHA-256 session token hashing with __Host- cookie prefixes.