medium.com/tag/ctf-writeup· Jul 27, 2026· by Walter Moar

Writeup for CyLab/picoCTF challenge “repetitions”

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Learn how CyLab’s “repetitions” challenge explores Base64 encoding, using the Linux shell to decode a flag that has been Base64-encoded… Continue reading on Medium »
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.
#cybersecurity#ctf#ctf-writeup#cylab#hacking