Published work tagged web security.
A JWT is a signed bundle of JSON claims. Here is how to read one, why decoding is not verifying, and how to check for the classic JWT security flaws.
A TLS certificate binds a domain name to a public key. Here is how I read one, trace its chain, fix common errors, and check CSRs and CAA records.
What breaks on an OAuth or OIDC login: redirect matching, PKCE, state, and the Host header. What I check, and what I turn on. No exploit lab.
A definitive, hands-on 2026 security audit guide for GraphQL APIs: covering schema discovery, introspection analysis, authorization auditing (BOLA/BFLA), query…
A comprehensive first-principles guide to assessing and securing web APIs in 2026, covering OWASP API Top 10, BOLA testing, JWT security, GraphQL audits, and Fa…
Building a Production-Grade Web Application Firewall (WAF) & AST Rule Compiler in Go: Stateful Inspection, Rate Limiting & Architecture (2026 Masterclass) ---…
A step-by-step penetration testing lab guide. Learn how to setup a test environment, identify BOLA vulnerabilities using Burp Suite Repeater/Match & Replace, an…
An exhaustive 2026 technical guide to API security assessments. Master OWASP API Top 10, BOLA, BFA, mass assignment, GraphQL security, and automated recon tools…
Master penetration testing with our comprehensive 2026 checklist. From pre-engagement to reporting, this guide covers every phase of a professional pentest with…
Master web application security testing with this comprehensive guide. Learn testing methodologies, OWASP best practices, essential tools (Burp Suite, ZAP, Nmap…
Master SQL injection prevention with this comprehensive guide. Learn parameterized queries, input validation, secure coding patterns, and defense strategies acr…
Complete SQL injection cheat sheet with 100+ payloads, bypass techniques, and sqlmap commands. Reference guide for MySQL, MSSQL, PostgreSQL, Oracle, and SQLite.
Master blind SQL injection techniques including boolean-based and time-based exploitation. Learn character-by-character data extraction, optimization strategies…
Master SQL injection with this hands-on tutorial using DVWA. Step-by-step walkthrough from beginner to advanced techniques with real examples and code.
Master all SQL injection types: error-based, union-based, blind (boolean & time-based), and out-of-band. Complete guide with code examples, comparison table, an…
Learn what SQL injection is, how it works, and why it's still one of the most dangerous web vulnerabilities in 2026. Complete beginner's guide with real example…
