qujin

Apprentice

#15 The Netherlands Top 12% Worldwide

400 Total XP

7 Labs Completed 0 First Bloods 0 Streak 5 Best

Activity

9 active days in the last year

Rank Progress

Apprentice

Next Junior

400 / 603 XP

Achievements

Streak Starter

Lab Rat

JavaScriptDeobfuscationClient-Side SecurityBrowser DevToolsCode AnalysisAuthentication BypassSQL InjectionWeb SecurityDatabase SecurityInput ValidationPenetration TestingNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissancePrivilege EscalationCookie PoisoningSession TamperingBase64 EncodingWeb ExploitationView Source CodeHTMLInformation DisclosureBroken Access ControlSource Code AnalysisBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security Fundamentals

Hack This Site Challenge

50 XP Jan 03, 2026

SQL Injection Test Challenge

50 XP Jan 03, 2026

Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy

100 XP Dec 14, 2025

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP Dec 13, 2025

Secrets in Source: View Source Code to Find the Flag Very Easy

50 XP Dec 13, 2025

Hack the Login Very Easy

50 XP Dec 13, 2025

Capture the Flag 101: Find and Submit Your First Flag Very Easy

50 XP Dec 13, 2025

Remote Code Execution (RCE) 1

RCE: Introduction 1 XP Jan 03, 2026

Flag Found - Hack This Site +50 XP

9 months ago

Flag Found - SQL Injection Test +50 XP

9 months ago

Chapter Completed - RCE: Introduction +1 XP

9 months ago

Active for 6 days

9 months ago

Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP

10 months ago

Task Completed - Nmap Commands Lab: Port Scanning to Privilege Escalation

10 months ago

Flag Found - Nmap Commands Lab: Port Scanning to Privilege Escalation +50 XP

10 months ago

Task Completed - Nmap Commands Lab: Port Scanning to Privilege Escalation

10 months ago

Task Completed - Nmap Commands Lab: Port Scanning to Privilege Escalation

10 months ago

Task Completed - Nmap Commands Lab: Port Scanning to Privilege Escalation

10 months ago

Flag Found - Hack the Cookie: Cookie Poisoning Attack +50 XP

10 months ago

Flag Found - Secrets in Source: View Source Code to Find the Flag +50 XP

10 months ago

Flag Found - Hack the Login +50 XP

10 months ago

Flag Found - Capture the Flag 101: Find and Submit Your First Flag +50 XP

10 months ago

Your Certificate is Ready!

View and share your Certificate of Achievement

View Certificate