Charlie Miller discovered a security hole in the way JavaScript code runs in iOS 4.3 that allows him to run arbitrary code. Miller submitted an app to the App Store that contained an exploit to demonstrate the vulnerability. Apple quickly pulled the app from the store and revoked his Developer Program access for a year. Apple did not immediately respond to a request for comment about when a patch could be expected for the vulnerability, though it is possible that an upcoming iOS update, expected within the next few weeks, may also patch this vulnerability.”]
Source: https://www.csoonline.com/article/2130163/researcher-demos-ios-security-flaw-via-app-store-app.html

