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

3846 Total XP

20 Labs Completed 0 First Bloods 30 Streak 35 Best

+845 this week +1257 this month

Activity

109 active days in the last year

Rank Progress

Senior

Next Expert

3846 / 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

Flag Found - ClearDesk +200 XP

3 hours ago

Flag Found - ClearDesk +200 XP

4 hours ago

Flag Found - Infiltrator +100 XP

5 hours ago

Lesson Completed +10 XP

6 hours ago

Daily Hack Solved - Who really called +10 XP

6 hours ago

Flag Found - Infiltrator +100 XP

1 day ago

Lesson Completed +5 XP

1 day ago

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

1 day ago

Lesson Completed +15 XP

2 days ago

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

2 days ago

Flag Found - Ping Pwn +50 XP

2 days ago

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

3 days ago

Lesson Completed +10 XP

3 days ago

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

3 days ago

Lesson Completed +5 XP

4 days ago

Daily Hack Solved - The redaction that was a layer +10 XP

4 days ago

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

5 days ago

Lesson Completed +15 XP

5 days ago

Daily Hack Solved - The role any repo can wear +10 XP

5 days ago

Lesson Completed +10 XP

6 days ago

Daily Hack Solved - The note inside the tool +10 XP

6 days ago

Daily Hack Solved - The cookie that was an object +10 XP

1 week ago

Lesson Completed +5 XP

1 week ago

Lesson Completed +16 XP

1 week ago

Daily Hack Solved - The redirect it only half checked +10 XP

1 week ago

Daily Hack Solved - The filename that runs +10 XP

1 week ago

Lesson Completed +10 XP

1 week ago

Daily Hack Solved - The header that skips the check +10 XP

1 week ago

Lesson Completed +5 XP

1 week ago

Chapter Completed - Hydra Cheat Sheet +1 XP

1 week ago

Daily Hack Solved - The codes the page had to know +10 XP

1 week ago

Lesson Completed +15 XP

1 week ago

Daily Hack Solved - The word you already know +10 XP

1 week ago

Lesson Completed +10 XP

1 week ago

Lesson Completed +5 XP

1 week ago

Daily Hack Solved - The link you can write yourself +10 XP

2 weeks ago

Lesson Completed +15 XP

2 weeks ago

Daily Hack Solved - The clock behind the commits +10 XP

2 weeks ago

Lesson Completed +10 XP

2 weeks ago

Daily Hack Solved - The second factor in the backup +10 XP

2 weeks ago

Lesson Completed +5 XP

2 weeks ago

Lesson Completed +15 XP

2 weeks ago

Lesson Completed +10 XP

2 weeks ago

Daily Hack Solved - Every road leads there +10 XP

2 weeks ago

Lesson Completed +5 XP

2 weeks ago

Lesson Completed +15 XP

2 weeks ago

Lesson Completed +10 XP

3 weeks ago

Daily Hack Solved - Write it back +10 XP

3 weeks ago

Lesson Completed +5 XP

3 weeks ago

Streak Frozen

3 weeks ago

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