A new version of FlatPress was released on June 12th 2015. Here's the announcement:
Hi guys! New FlatPress release!FlatPress 1.0.3 | FlatPress.org | Friday, June 12, 2015
This release fixes an XSS (CVE-2014-100036).
Bonus: a new style for Leggero theme by @MarcThibeault and other UI enhancements by @MarcThibeault and @liquibyte
It's good to see that FlatPress is always up to date when it comes to security. Leggero v2 is also part of this release. I created the Leggero v2 style earlier this year, as a simple way to contribute to FlatPress.
As usual, you can download FlatPress on GitHub:
GitHub | FlatPress