function woocommerce_after_shop_loop_item_title_short_description() {
    global $product;
    if ( ! $product->post->post_excerpt ) return;
    ?>
    <div itemprop="description">
        <?php echo apply_filters( 'woocommerce_short_description', $product->post->post_excerpt ) ?>
    </div>
    <?php
}
add_action('woocommerce_after_shop_loop_item_title', 'woocommerce_after_shop_loop_item_title_short_description', 5);

<p>lorem lipsum losem</p>

<ul>
    <li> lorem </li>
    <li> lipsum </li>
    <li> losem </li>
</ul>

foreach ( array( 'pre_term_description' ) as $filter ) {
    remove_filter( $filter, 'wp_filter_kses' );
}

foreach ( array( 'term_description' ) as $filter ) {
    remove_filter( $filter, 'wp_kses_data' );
}