Cross-site scripting (XSS) vulnerability in the refreshAdvancedAccessibilityOfItem function in wp-admin/js/nav-menu.js in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via an accessibility-helper title.
https://wpvulndb.com/vulnerabilities/8132
https://wordpress.org/news/2015/08/wordpress-4-2-4-security-and-maintenance-release/
https://core.trac.wordpress.org/changeset/33541
https://core.trac.wordpress.org/changeset/33540
https://codex.wordpress.org/Version_4.2.4
http://www.securitytracker.com/id/1033178