Juq-191

The structure mirrors the format used by most CTF write‑ups so that anyone reading it can follow the logic, reproduce the results, and understand why each step works.
Feel free to adapt any part of the methodology to a different environment – the core techniques (enumeration, fuzzing, exploitation, post‑exploitation) remain the same.

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// generate a thumbnail using ImageMagick $cmd = "convert $dest -resize 200x200 $dest_thumb.jpg 2>/dev/null"; exec($cmd);

2.2. Service Fingerprint

Visiting the site in a browser (or with curl) shows a very minimal landing page: juq-191