"JUQ-191" does not appear to correspond to a widely recognized consumer product, technical part, or standard industrial model in current public databases. It is possible that "JUQ-191" refers to: Internal Inventory/Part Numbers
The gallery.php endpoint lists previously uploaded images. juq-191
Even though this is a CTF environment, it’s good practice to artefacts that could be used to trace the attack: "JUQ-191" does not appear to correspond to a
The server stores it as uploads/5f3a9c7b8a.jpg . When the script runs the convert command, ImageMagick parses the EXIF tag and executes: juq-191