In WordPress before 4.7.3 (wp-admin/plugins.php), unintended files can be deleted by administrators using the plugin deletion functionality.

In WordPress before 4.7.3, there is authenticated Cross-Site Scripting (XSS) via Media File Metadata. This is demonstrated by both (1) mishandling of the playlist shortcode in the wpplaylistshortcode function in wp-includes/media.php and (2) mishandling of meta information in the renderTracks function in wp-includes/js/mediaelement/wp-playlist.js.

In WordPress before 4.7.3 (wp-includes/pluggable.php), control characters can trick redirect URL validation.

In WordPress before 4.7.3 (wp-includes/embed.php), there is authenticated Cross-Site Scripting (XSS) in YouTube URL Embeds.