*ML

Platform: CUSTOM | Category: Crypto | Type: Challenge | Difficulty: Easy | OS: N/A | **Author: XESXOR Techniques: HTML entity decoding

Summary

Walkthrough of the CUSTOM Crypto *ML. Task: File with HTML hex entities (&#xNN;). Solution: Decode using html.unescape() or manual hex decoding.

Description

File contains HTML hex entities (&#xNN;). Decode to get flag.

Solution

html.unescape() or manual hex decode of &#xNN; entities ‍​‌‌​​‌​​​‌‌​​‌​​​​‌‌​‌​​​​‌‌‌​​‌​​‌‌​​​‌​​‌‌‌​​​​​‌‌​‌‌​​​‌‌​​​​‍

Key Takeaways / Lessons

• Mastering HTML entity decoding was key to this challenge.
• Always check for common misconfigurations and verify assumptions.

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Crafted by XESXOR Research • 2026-03-08 • CUSTOM • *ML • Difficulty: Easy