TryHackMe: OWASP Top 10 2025 — Insecure Data Handling

Author: Mario Martinez Jr. (ku5e / Gary7) | TryHackMe USA Rank #76 | Top 1% Difficulty: Easy/Medium Topics: Cryptographic Failures, Injection (SSTI), Software and Data Integrity Failures These three vulnerability classes show up in real production applications constantly. Knowing them well is what separates someone who finds a critical bug in a bug bounty program from someone who walks right past it. This walkthrough documents the steps, payloads, and reasoning used to solve each lab. ...

February 20, 2026 · Mario Martinez Jr.