Hello.
cPanel 11.25.0-R42399

cPanel -> File Manager -> Upload files

On the page, there is no encoding, because of this text is displayed incorrectly in the page source:
<meta http-equiv="Content-Type" content="text/html; charset=" />

Screenshot: http://s44.radikal.ru/i105/1001/1f/66633ad2dbee.jpg

Please change to:
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

internal id: 36749

Please fixed in the next build.