x0xr00t

Senior

Online

I break things to learn how they work. Dutch researcher known as x0xr00t. Ghost in the machine, uac king. u may know me from 0day dev

#5 The Netherlands Top 1% Worldwide

4376 Total XP

20 Labs Completed 0 First Bloods 50 Streak 50 Best

+60 this week +170 this month

Activity

128 active days in the last year

Rank Progress

Senior

Next Expert

4376 / 4633 XP

Achievements

Streak Starter

Streak Master

Streak Legend

Lab Rat

Lab Expert

Scholar

IDORAPI SecurityPath TraversalAccess ControlPrivilege EscalationJWT ManipulationSSH ExploitationLog InjectionWeb SecurityLinux SecurityCommand InjectionWeb ExploitationService DiscoveryNetwork SecurityPassword CrackingCustom WordlistWordlist GenerationPRINCE ModeJohn the Ripperzip2johnMD5Hash CrackingOSINTPassword ReuseSQL InjectionAuthentication BypassDatabase SecurityPHPRCELog AnalysisIncident ResponsePattern RecognitionFile DiscoveryCommand Line ToolsForensicsHTTP ProtocolAttack DetectionSecurity AssessmentSSHCGIFile AccessDirectory TraversalInput ValidationPenetration TestingJavaScriptDeobfuscationClient-Side SecurityBrowser DevToolsCode AnalysisIP SPOOFINGFTPLFISecurity Through ObscurityView SourceInformation DisclosureBroken Access ControlHTMLNmapNmap CommandsTelnetPort ScanningNetwork ReconnaissanceCookie PoisoningSession TamperingBase64 EncodingView Source CodeSource Code AnalysisBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security Fundamentals

ClearDesk Medium

400 XP Oct 23, 2026

Infiltrator Easy

200 XP Oct 23, 2026

Ping Pwn Challenge

50 XP Oct 20, 2026

Password Cracking - Custom Wordlist Attack Easy

200 XP Oct 20, 2026

Auth Bypass Challenge

50 XP Jun 30, 2026

Beyond Echo Medium

200 XP Jun 25, 2026

Log Hunter Challenge

50 XP Jun 13, 2026

Cronpocalypse Easy

200 XP Jun 07, 2026

Path Traversal Challenge

50 XP Jun 06, 2026

SQL Injection Test Challenge

50 XP Jun 02, 2026

Hack This Site Challenge

50 XP May 30, 2026

Spoof! Easy

100 XP May 30, 2026

Anonymous Easy

100 XP May 30, 2026

Include me Easy

100 XP May 30, 2026

Secrets in Source 2: Bypass Security Through Obscurity Very Easy

50 XP May 30, 2026

Nmap Commands Lab: Port Scanning to Privilege Escalation Very Easy

100 XP May 29, 2026

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP May 29, 2026

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

50 XP May 29, 2026

Hack the Login Very Easy

50 XP May 29, 2026

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

50 XP May 29, 2026

Security Careers & Certifications 1

Penetration testing careers 1 XP Jun 09, 2026

Security Cheat Sheets 1

Hydra Cheat Sheet 1 XP Oct 12, 2026

Hacking 101 3

The hacker mindset 1 XP May 29, 2026

Hidden in plain sight 1 XP May 30, 2026

The hacker's toolkit 1 XP Jun 06, 2026

Lesson Completed +15 XP

1 day ago

Daily Hack Solved - The file that kept its name +10 XP

1 day ago

Daily Hack Solved - The meeting code that was a login +10 XP

1 day ago

Lesson Completed +10 XP

1 day ago

Daily Hack Solved - The build that packed its own key +10 XP

3 days ago

Lesson Completed +5 XP

3 days ago

Lesson Completed +15 XP

4 days ago

Lesson Completed +15 XP

5 days ago

Daily Hack Solved - Two names, one signature +10 XP

5 days ago

Lesson Completed +10 XP

6 days ago

Daily Hack Solved - The address the signers never saw +10 XP

6 days ago

Lesson Completed +5 XP

1 week ago

Daily Hack Solved - The run that gave the hotel away +10 XP

1 week ago

Daily Hack Solved - The model that phoned home +10 XP

1 week ago

Lesson Completed +15 XP

1 week ago

Lesson Completed +10 XP

1 week ago

Active for 2 days

1 week ago

Lesson Completed +5 XP

1 week ago

Daily Hack Solved - The field the error named +10 XP

1 week ago

Lesson Completed +15 XP

1 week ago

Daily Hack Solved - The analytics script nobody added +10 XP

1 week ago

Lesson Completed +10 XP

2 weeks ago

Daily Hack Solved - The name that ran +10 XP

2 weeks ago

Flag Found - TechNova Infiltration +200 XP

2 weeks ago

Lesson Completed +5 XP

2 weeks ago

Daily Hack Solved - Deleted in the last layer +10 XP

2 weeks ago

Lesson Completed +15 XP

2 weeks ago

Daily Hack Solved - Two logins too far apart +10 XP

2 weeks ago

Lesson Completed +10 XP

2 weeks ago

Daily Hack Solved - The key that poisoned the base +10 XP

2 weeks ago

Lesson Completed +5 XP

2 weeks ago

Daily Hack Solved - The origin it trusted +10 XP

2 weeks ago

Lesson Completed +15 XP

2 weeks ago

Daily Hack Solved - The current that spelled it out +10 XP

2 weeks ago

Flag Found - ClearDesk +200 XP

2 weeks ago

Flag Found - ClearDesk +200 XP

2 weeks ago

Flag Found - Infiltrator +100 XP

2 weeks ago

Lesson Completed +10 XP

2 weeks ago

Daily Hack Solved - Who really called +10 XP

2 weeks ago

Flag Found - Infiltrator +100 XP

3 weeks ago

Lesson Completed +5 XP

3 weeks ago

Daily Hack Solved - The name that points nowhere +10 XP

3 weeks ago

Lesson Completed +15 XP

3 weeks ago

Daily Hack Solved - The folder that shipped itself +10 XP

3 weeks ago

Flag Found - Ping Pwn +50 XP

3 weeks ago

Flag Found - Password Cracking - Custom Wordlist Attack +100 XP

3 weeks ago

Lesson Completed +10 XP

3 weeks ago

Daily Hack Solved - One password, many doors +10 XP

3 weeks ago

Lesson Completed +5 XP

3 weeks ago

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