NFC Card Hack: Top Up Like a Pro (But Seriously, Don’t)

The NFC card vulnerability in KioSoft’s “Stored Value” Unattended Payment Solution allows tech-savvy individuals to “create money out of thin air.” With a little manipulation, users can top up their cards for free. It’s a modern-day magic trick that KioSoft probably wishes remained in its hat.

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Hot Take:

Ah, the classic tale of technology gone rogue! Who knew that your MiFare Classic NFC card could turn into a magical money-making machine, courtesy of some clever hacking? It’s like finding out your grandma’s old quilt is a portal to Narnia. KioSoft’s “Stored Value” system might be a little too good at storing value—except now it’s storing imaginary cash. But hey, at least we can all enjoy the ride while it lasts. Just make sure to pack your Proxmark!

Key Points:

  • A vulnerability in KioSoft’s “Stored Value” system allows NFC card exploitation for free top-ups.
  • The issue stems from the use of insecure MiFare Classic cards, which can be manipulated to increase card balances.
  • Despite multiple vendor contacts and timelines, a definitive patch and hardware upgrade are pending.
  • The vulnerability is documented as CVE-2025-8699, with a high-impact rating.
  • Until a fix is rolled out, the recommendation is to switch to KioSoft’s Online Payment System.

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