You could have told Apple. They could fix this in iOS, blocking the apps via a software update.
If it was me, I would have notified Apple and all of the companies who have bug bounty programs.
If it was me, I would have notified Apple and all of the companies who have bug bounty programs.
http://support.apple.com/kb/HT6162
I reported CVE-2013-6835. They fixed Facetime-Audio from Safari, but not from other browsers (yet?). This is quite a wide issue. I do not think letting every individual developer know is feasible. I did it for a few bad issues, but there's a limit to what can be done.
And a lot of these can be found in a matter of minutes anyways.