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ChrisMaher Online

Senior
United Kingdom Joined January 2026 Pro Member

Live Ranking

#29

Best: #29

Total Points

363

Total Earned

Labs Completed

28

28 User5 Root

Modules

68

Validated

First Bloods

0

First to Complete

Best Streak

34

Days

Skills Acquired

Technical skills practiced through completed labs

JWTAlgorithm ConfusionRS256HS256Token ForgeryWeb SecurityToken AuthenticationCryptographyUnicodeSteganographyWeb ForensicsPythonText AnalysisZIP Password CrackingJohn the RipperfcrackzipDictionary AttacksBrute ForceArchive SecurityPDF SecurityPassword CrackingDigital ForensicsDocument SecurityBrute Force AttacksClient-Side SecurityMD5 CrackingSource Code AnalysisWeb Application SecurityPassword AttacksAuthentication BypassSSHPython PickleEnterprise DeserializationCorporate Backup SystemsDisaster Recovery ExploitationConfiguration Import AttacksEnterprise SecurityCommand InjectionShell CommandsSystem AdministrationHTTP Parameter ManipulationSecurity AssessmentLocal File InclusionUser-Agent Log PoisoningRemote Code ExecutionDirectory TraversalApache SecurityLog AnalysisWeb EnumerationAuthenticationRCEPrivilege EscalationLinuxDirectory FuzzingX-Forwarded-For SpoofingBruteforceffufNewline InjectionLinux EnumerationSUID ExploitationBuffer OverflowARM64 ROPStatic Binary AnalysisBinary ExploitationpwntoolsropperGDBXXEXML SecurityFile DisclosureExternal EntityVulnerability AssessmentFile UploadBypass TechniquesPHPWeb ShellsInput ValidationSocial EngineeringPost ExploitationSQL InjectionDatabase SecurityFTP ExploitationBackdoor DetectionNetwork ServicesRemote ShellSystem ExploitationIP SPOOFINGSSRFServer-Side Request ForgeryAWS MetadataCloud SecurityIAM CredentialsNetwork SecurityAWS EC2LFIFile Upload BypassPHP SecurityWeb Shell ExploitationFTPCommand LineFile System NavigationHidden FilesgrepfindHTMLBrowser DevToolsLearning PathTELNETWEBWebNetworkingReconnaissanceWeb Services

Completed Modules

Educational modules successfully validated

Nmap Mastery: Dominate Network Scanning

4 modules
Installing Nmap
1 pts Completed: Feb 05, 2026
Advanced Techniques
1 pts Completed: Feb 07, 2026
Introduction to Nmap
1 pts Completed: Feb 02, 2026
Essential Nmap Scanning
1 pts Completed: Feb 06, 2026

HTTP Header Manipulation: IP Spoofing

3 modules
Remediate
1 pts Completed: Jan 11, 2026
Techniques for IP Spoofing in HTTP Headers
1 pts Completed: Jan 11, 2026
Manipulating Headers
1 pts Completed: Jan 10, 2026

Password Cracking

10 modules
Rainbow tables
1 pts Completed: Jan 27, 2026
Wireless cracking
1 pts Completed: Jan 29, 2026
PDF cracking
1 pts Completed: Jan 27, 2026
Linux hash cracking
1 pts Completed: Feb 01, 2026
Office Documents cracking
1 pts Completed: Jan 28, 2026
ZIP cracking
1 pts Completed: Jan 27, 2026
Brute force attacks
1 pts Completed: Jan 27, 2026
Password fundamentals
1 pts Completed: Jan 22, 2026
Dictionary attacks
1 pts Completed: Jan 27, 2026
Windows hash cracking
1 pts Completed: Jan 31, 2026

Linux Privilege Escalation

10 modules
Linux privesc basics
1 pts Completed: Jan 12, 2026
PATH hijacking
1 pts Completed: Jan 19, 2026
Manual enumeration
1 pts Completed: Jan 12, 2026
Linux hardening
1 pts Completed: Jan 21, 2026
Cron job abuse
1 pts Completed: Jan 18, 2026
Container escapes
1 pts Completed: Jan 21, 2026
SUID exploitation
1 pts Completed: Jan 14, 2026
Automated enumeration
1 pts Completed: Jan 13, 2026
Sudo abuse
1 pts Completed: Jan 15, 2026
Kernel exploits
1 pts Completed: Jan 20, 2026

Network Pentesting

10 modules
Active reconnaissance
1 pts Completed: Jan 17, 2026
Post-exploitation
1 pts Completed: Jan 26, 2026
Pivoting
1 pts Completed: Jan 26, 2026
Service exploitation
1 pts Completed: Jan 26, 2026
Pentest reporting
1 pts Completed: Jan 26, 2026
Password attacks
1 pts Completed: Jan 26, 2026
MITM attacks
1 pts Completed: Jan 26, 2026
Vulnerability scanning
1 pts Completed: Jan 25, 2026
Network fundamentals
1 pts Completed: Jan 12, 2026
Service enumeration
1 pts Completed: Jan 24, 2026

Security Cheat Sheets

10 modules
Hydra Cheat Sheet
1 pts Completed: Jan 08, 2026
Nikto Cheat Sheet
1 pts Completed: Jan 07, 2026
John the Ripper Cheat Sheet
1 pts Completed: Jan 08, 2026
SQLMap Cheat Sheet
1 pts Completed: Jan 08, 2026
Wireshark Cheat Sheet
1 pts Completed: Jan 10, 2026
Burp Suite Cheat Sheet
1 pts Completed: Jan 08, 2026
Gobuster Cheat Sheet
1 pts Completed: Jan 08, 2026
Nmap Cheat Sheet
1 pts Completed: Jan 06, 2026
Hashcat Cheat Sheet
1 pts Completed: Jan 09, 2026
Metasploit Cheat Sheet
1 pts Completed: Jan 08, 2026

HDNA Ethical Hacking Course

5 modules
1. Legal & Compliance
1 pts Completed: Jan 08, 2026
2. Network Protocols and Security
1 pts Completed: Jan 08, 2026
4. Network Scanning
1 pts Completed: Jan 08, 2026
3. Reconnaissance
1 pts Completed: Jan 08, 2026
Course Summary
1 pts Completed: Jan 08, 2026

Web App Attacks

12 modules
CSRF Attacks
1 pts Completed: Jan 07, 2026
XXE Injection
1 pts Completed: Jan 11, 2026
SSRF
1 pts Completed: Jan 12, 2026
File Inclusion
1 pts Completed: Jan 21, 2026
Web Security Intro
1 pts Completed: Jan 07, 2026
SSTI
1 pts Completed: Jan 23, 2026
Deserialization
1 pts Completed: Jan 23, 2026
File Upload Attacks
1 pts Completed: Jan 11, 2026
XSS Attacks
1 pts Completed: Jan 07, 2026
Auth Bypass
1 pts Completed: Jan 11, 2026
SQL Injection
1 pts Completed: Jan 07, 2026
Command Injection
1 pts Completed: Jan 23, 2026

JWT Attacks

4 modules
JWT Basics
1 pts Completed: Feb 04, 2026
JWT Tampering
1 pts Completed: Feb 04, 2026
JWT Cracking
1 pts Completed: Feb 04, 2026
Algorithm Confusion
1 pts Completed: Feb 04, 2026

Completed Labs & Challenges

Hands-on cybersecurity challenges successfully completed

JWT Algo Confusion
Challenge
5 points Feb 04, 2026 29m
JWTAlgorithm ConfusionRS256HS256Token ForgeryWeb Security
JWT Bypass
Challenge
5 points Feb 04, 2026 32m
JWTWeb SecurityToken AuthenticationCryptography
Phantom Text
Challenge
5 points Feb 03, 2026 15m
UnicodeSteganographyWeb ForensicsPythonText Analysis
ZIP Cracker
Challenge
5 points Jan 27, 2026 16m
ZIP Password CrackingJohn the RipperfcrackzipDictionary AttacksBrute ForceArchive Security
PDF Password Cracker
Challenge
5 points Jan 27, 2026 24m
PDF SecurityPassword CrackingDictionary AttacksDigital ForensicsDocument SecurityBrute Force Attacks
Admin Portal Breach
Challenge
5 points Jan 27, 2026 27m
Client-Side SecurityMD5 CrackingSource Code AnalysisWeb Application SecurityPassword AttacksAuthentication Bypass
Cronpocalypse
Easy
20 points Jan 23, 2026 43m
SSH
Corporate Backup Deserializer
Challenge
5 points Jan 23, 2026 36m
Python PickleEnterprise DeserializationCorporate Backup SystemsDisaster Recovery ExploitationConfiguration Import AttacksEnterprise Security
Shell Command Scanner
Challenge
5 points Jan 23, 2026 39m
Command InjectionWeb SecurityShell CommandsSystem AdministrationHTTP Parameter ManipulationSecurity Assessment
LFI Log Poison
Challenge
5 points Jan 21, 2026 57m
Local File InclusionUser-Agent Log PoisoningRemote Code ExecutionDirectory TraversalWeb SecurityApache SecuritySystem AdministrationLog Analysis
Hidden CMS Breach
Medium
40 points Jan 16, 2026 59m
Web EnumerationWeb SecurityAuthenticationRCEPrivilege EscalationLinux
Hack the Box
Hard
70 points Jan 11, 2026 1h 53m
Directory FuzzingX-Forwarded-For SpoofingBruteforceffufCommand InjectionNewline InjectionWeb SecurityLinux EnumerationSUID ExploitationBuffer OverflowARM64 ROPStatic Binary AnalysisBinary ExploitationpwntoolsropperGDB
XXE Exposed
Challenge
5 points Jan 11, 2026 19m
XXEXML SecurityFile DisclosureExternal EntityWeb SecurityVulnerability Assessment
File Upload Bypass
Challenge
5 points Jan 11, 2026 29m
File UploadWeb SecurityBypass TechniquesPHPWeb ShellsInput ValidationSocial EngineeringPost Exploitation
Auth Bypass
Challenge
5 points Jan 11, 2026 9m
SQL InjectionAuthentication BypassWeb SecurityDatabase Security
Anonymous 2
Easy
10 points Jan 09, 2026 1h 1m
FTP ExploitationBackdoor DetectionNetwork ServicesRemote ShellSystem Exploitation
Spoof!
Easy
10 points Jan 09, 2026 45m
IP SPOOFING
URL Scanner
Challenge
5 points Jan 09, 2026 23m
SSRFServer-Side Request ForgeryAWS MetadataCloud SecurityIAM CredentialsNetwork SecurityWeb SecurityAWS EC2
Include me
Easy
10 points Jan 09, 2026 1h 13m
PHPLFI
FiPloit
Easy
20 points Jan 09, 2026 6h 44m
Local File InclusionFile Upload BypassPHP SecurityDirectory TraversalWeb Shell ExploitationPrivilege EscalationLog Analysis
Anonymous
Easy
10 points Jan 06, 2026 29m
FTP
Linux Fundamentals Practice
Challenge
5 points Jan 06, 2026 8m
LinuxCommand LineFile System NavigationHidden Filesgrepfind
Secrets in Source 2
Very Easy
5 points Jan 06, 2026 30m
Web SecurityHTMLBrowser DevToolsClient-Side SecuritySource Code AnalysisLearning Path
Nmap Lab 102
Very Easy
10 points Jan 06, 2026 44m
TELNETLearning Path
Hack the Cookie
Very Easy
5 points Jan 06, 2026 14m
WEBLearning Path
Secrets in Source
Very Easy
5 points Jan 06, 2026 1m
HTMLLearning Path
Hack the Login
Very Easy
5 points Jan 06, 2026 6m
WebAuthenticationClient-Side SecurityLearning Path
Onboarding Lab: Access and Flags
Very Easy
5 points Jan 06, 2026 1m
NetworkingReconnaissanceCommand LineWeb ServicesLearning Path

Courses Progress

Your learning paths and modules

Nmap Mastery: Dominate Network Scanning
4 / 4 modules completed
100%
Linux Privilege Escalation
10 / 10 modules completed
100%
HTTP Header Manipulation: IP Spoofing
3 / 3 modules completed
100%
Web App Attacks
12 / 12 modules completed
100%
Security Cheat Sheets
10 / 10 modules completed
100%
HDNA Ethical Hacking Course
5 / 5 modules completed
100%
JWT Attacks
4 / 4 modules completed
100%
Network Pentesting
10 / 10 modules completed
100%
Password Cracking
10 / 10 modules completed
100%
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