Before version 4.8.2, WordPress allowed a Directory Traversal attack in the Customizer component via a crafted theme filename.Referenceshttps://www.debian.org/security/2017/dsa-3997http://www.securityfocus.com/bid/100912https://core.trac.wordpress.org/changeset/41397http://www.securitytracker.com/id/1039553https://wpvulndb.com/vulnerabilities/8912https://wordpress.org/news/2017/09/wordpress-4-8-2-security-and-maintenance-release/
