## Apprentice Level - ✅ [[1. Basic SSRF against the local server]] - ✅ [[2. Basic SSRF against another back-end system]] ## Practitioner Level - ✅ [[3. Blind SSRF with out-of-band detection]] - ✅ [[4. SSRF with blacklist-based input filter]] - ✅ [[5. SSRF with filter bypass via open redirection vulnerability]] ## Expert Level - ✅ [[6. Blind SSRF with Shellshock exploitation]] - ✅ [[7. SSRF with whitelist-based input filter]]