CVE-2015-9400
The wordpress-meta-robots plugin through 2.1 for WordPress has wp-admin/post-new.php text SQL injection.
Date published : 2019-09-20
http://cinu.pl/research/wp-plugins/mail_b31beb377f24e401c9ec44a0f331a174.html
https://wordpress.org/plugins/wordpress-meta-robots/#developers