#WordPressPlugin: Allows you to upload SVG files through the media uploader.

svg.php

<?php
/**
 * Plugin Name: SVG
 * Version: 1.0
 * Description: Allows you to upload SVG files through the media uploader.
 * Author: Dominik Schilling
 * Author URI: http://wphelper.de/
 * Plugin URI: https://gist.github.com/ocean90/5263152
 *
 * License: GPLv2 or later
 *
 *	Copyright (C) 2012-2013 Dominik Schilling
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License
 *	as published by the Free Software Foundation; either version 2
 *	of the License, or (at your option) any later version.
 *
 *	This program is distributed in the hope that it will be useful,
 *	but WITHOUT ANY WARRANTY; without even the implied warranty of
 *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *	GNU General Public License for more details.
 *
 *	You should have received a copy of the GNU General Public License
 *	along with this program; if not, write to the Free Software
 *	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
 
 
/**
 * Support for SVG images
 */
function ds_upload_mimes( $mimes ) {
	$mimes[ 'svg' ] = 'image/svg+xml';

	return $mimes;
}
add_filter( 'upload_mimes', 'ds_upload_mimes' );