Vulnerability – Missing Authorization?

Wordfence sent me a warning that there’s a vulnerability issue with your player.

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/mp3-music-player-by-sonaar/mp3-audio-player-for-music-radio-podcast-by-sonaar-594-missing-authorization