Skype reached out to TechCrunch to say they're hard at work on getting an update pushed to the App Store.
We are working hard to fix this reported issue in our next planned release which we hope to roll out imminently. In the meantime we always recommend people exercise caution in only accepting friend requests from people they know and practice common sense internet security as always.
The funny thing is, Skype has known about the issue for a while now. AppSec Consulting security researcher Phil Purviance helped discover the problem and let Skype know about it almost a month ago. Skype responded saying they would release an update earlier this month, but we're nearing the end of September and there's no update to be found.
Here's hoping Skype gets on this quick and pushes out an update soon, but in the meantime check out the video below detailing how the vulnerability works.