CVE-2015-9421
The olevmedia-shortcodes plugin before 1.1.9 for WordPress has CSRF with resultant XSS via the wp-admin/admin-ajax.php?action=omsc_popup id parameter.
Date published : 2019-09-25
http://cinu.pl/research/wp-plugins/mail_d9e466122cd9a6ca27db840cca277cdb.html
https://wordpress.org/plugins/olevmedia-shortcodes/#developers