In WordPress before 4.7.3 (wp-admin/js/tags-box.js), there is cross-site scripting (XSS) via taxonomy term names.
https://wpvulndb.com/vulnerabilities/8769
https://wordpress.org/news/2017/03/wordpress-4-7-3-security-and-maintenance-release/
https://github.com/WordPress/WordPress/commit/9092fd01e1f452f37c313d38b18f9fe6907541f9
https://codex.wordpress.org/Version_4.7.3