Web Exploitation Exploiting File Upload Vulnerabilities: From Bypass to Webshell
A practical guide to bypassing file upload filters with double extensions, content-type, and magic bytes to land a webshell, plus defenses.
Web Exploitation
Web Exploitation 
Web Exploitation JWT Vulnerabilities and Attacks: alg none, Key Confusion, and kid Injection
A practical guide to exploiting JSON Web Token flaws — alg=none, key confusion, weak secrets, and kid injection — plus defenses.
Web Exploitation IDOR and Broken Access Control: Exploiting Insecure Direct Object References
A practical guide to finding and exploiting IDOR/BOLA flaws through parameter tampering and enumeration, plus blue-team defenses.
Security Server-Side Template Injection: From {{7*7}} to RCE
A practical guide to Server-Side Template Injection: detecting, fingerprinting, and escaping Jinja2 and Twig sandboxes to achieve RCE.
Security Authentication Bypass Techniques: Logic Flaws, SQLi, Weak Resets, and 2FA Bypass
A practical walkthrough of four authentication bypass classes — logic flaws, SQLi, weak password resets, and 2FA bypass — with detection and defense.
Web Exploitation CSRF Attacks and Defenses: Forging State-Changing Requests
How Cross-Site Request Forgery hijacks authenticated sessions, with a hands-on PoC and modern token/SameSite defenses.
Web Exploitation Web Cache Poisoning: Weaponizing Unkeyed Input
How attackers turn unkeyed inputs like X-Forwarded-Host into stored XSS via shared caches, and how to defend.
Web Exploitation Attacking GraphQL APIs: Introspection, Batching, IDOR, and DoS
A practical guide to GraphQL pentesting: fingerprinting with graphw00f, introspection, batching, IDOR, and DoS, plus blue-team defenses.
Cloud Security Cloud Metadata Service (IMDS) Attacks via SSRF: Stealing Credentials and Defending IMDSv2
How attackers pivot from SSRF to cloud credential theft through 169.254.169.254, and how IMDSv2 and hop limits stop them.
Web Exploitation REST API Penetration Testing Methodology: From Recon to BOLA
A practical, repeatable methodology for testing REST APIs: BOLA, mass assignment, broken rate limiting, and blue-team defenses.
Web Exploitation GraphQL API Security Testing: Advanced Offensive and Defensive Techniques
Advanced GraphQL pentesting: introspection, batching abuse, depth-limit bypass, IDOR, and blue-team defenses.
Security Breaking OAuth 2.0 and OpenID Connect: Redirect, State, and Token Attacks
A practical guide to OAuth 2.0 and OIDC attacks - redirect_uri abuse, state/CSRF, PKCE, and token leakage - with blue-team defenses.