The Android browser in Android before 2.3.4 allows remote attackers to obtain SD card contents via crafted content:// URIs, related to (1) BrowserActivity.java and (2) BrowserSettings.java in com/android/browser/.
http://www.slashgear.com/android-data-theft-exploit-to-be-plugged-in-gingerbread-video-24116054/
http://www.securityfocus.com/bid/48256
http://www.csc.ncsu.edu/faculty/jiang/nexuss.html
http://thomascannon.net/blog/2010/11/android-data-stealing-vulnerability/