SVG upload for WP Admin only

/**

 * Enable SVG uploads for Administrators only

 */

function enable_svg_uploads_for_admins($mime_types) {

    if (current_user_can('manage_options')) {

        $mime_types['svg'] = 'image/svg+xml';

        $mime_types['svgz'] = 'image/svg+xml';

    }

    return $mime_types;

}

add_filter('upload_mimes', 'enable_svg_uploads_for_admins');

/**

 * Bypass secondary file-type check for SVG uploads by admins

 */

function fix_svg_filetype_check($data, $file, $filename, $mimes) {

    if (current_user_can('manage_options')) {

        $ext = pathinfo($filename, PATHINFO_EXTENSION);

        if (strtolower($ext) === 'svg' || strtolower($ext) === 'svgz') {

            $data['ext'] = $ext;

            $data['type'] = 'image/svg+xml';

            $data['proper_filename'] = $filename;

        }

    }

    return $data;

}

add_filter('wp_check_filetype_and_ext', 'fix_svg_filetype_check', 10, 4);

/**

 * Fix SVG display in the media library

 */

function fix_svg_media_display($response, $attachment, $meta) {

    if (current_user_can('manage_options') && $response['mime'] === 'image/svg+xml') {

        $response['image'] = array(

            'src'    => $response['url'],

            'width'  => 800,

            'height' => 600,

        );

        $response['thumb'] = $response['icon'];

    }

    return $response;

}

add_filter('wp_prepare_attachment_for_js', 'fix_svg_media_display', 10, 3);