SELLER5

Apprentice

#15 Romania

399 Total XP

4 Labs Completed 0 First Bloods 0 Streak 7 Best

+5 this week +32 this month

Activity

60 active days in the last year

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Rank Progress

Apprentice

Next Junior

399 / 577 XP

Achievements

Streak Starter

Streak Master

Cookie PoisoningSession TamperingBase64 EncodingPrivilege EscalationBrowser DevToolsClient-Side SecurityWeb ExploitationView Source CodeHTMLInformation DisclosureBroken Access ControlSource Code AnalysisWeb SecurityAuthentication BypassBroken AuthenticationDeveloper ToolsLearning PathCapture The FlagCTFCTF BasicsFlag SubmissionUUIDGetting StartedCyber Security Fundamentals

Hack the Cookie: Cookie Poisoning Attack Very Easy

50 XP Mar 28, 2026

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

50 XP Mar 22, 2026

Hack the Login Very Easy

50 XP Mar 22, 2026

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

50 XP Mar 22, 2026

Hacking 101 2

Encoding is not encryption 1 XP Sep 06, 2026

Hidden in plain sight 1 XP Sep 01, 2026

Lesson Completed +5 XP

2 days ago

Active for 1 days

5 days ago

Chapter Completed - Encoding is not encryption +1 XP

6 days ago

Active for 3 days

1 week ago

Chapter Completed - Hidden in plain sight +1 XP

1 week ago

Lesson Completed +15 XP

1 week ago

Daily Hack Solved - Follow the ransom BTC +10 XP

1 week ago

Active for 1 days

1 week ago

Daily Hack Solved - PEM, not JPG +10 XP

2 weeks ago

Active for 4 days

2 weeks ago

Lesson Completed +11 XP

3 weeks ago

Daily Hack Solved - Read the system prompt +10 XP

3 weeks ago

Lesson Completed +5 XP

3 weeks ago

Daily Hack Solved - Find the reentrancy bug +10 XP

3 weeks ago

Active for 4 days

4 weeks ago

Daily Hack Solved - Decrypt the ransom note +10 XP

1 month ago

Daily Hack Solved - Find the hidden email +10 XP

1 month ago

Daily Hack Solved - Decode the beacon label +10 XP

1 month ago

Active for 2 days

1 month ago

Daily Hack Solved - Same handle everywhere +10 XP

1 month ago

Lesson Completed +15 XP

1 month ago

Daily Hack Solved - Vigenere then base64 +10 XP

1 month ago

Active for 1 days

1 month ago

Daily Hack Solved - Hex back to text +10 XP

1 month ago

Active for 1 days

1 month ago

Daily Hack Solved - Unshift the letters +10 XP

1 month ago

Daily Hack Solved - The comment leak +10 XP

2 months ago

Lesson Completed +11 XP

2 months ago

Lesson Completed +5 XP

2 months ago

Active for 1 days

2 months ago

Daily Hack Solved - Tamper the invoice ID +10 XP

2 months ago

Active for 10 days

2 months ago

Certificate Locked

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