wp-mail.php in WordPress before 4.7.1 might allow remote attackers to bypass intended posting restrictions via a spoofed mail server with the mail.example.com name.
www.debian.org/security/2017/dsa-3779
www.openwall.com/lists/oss-security/2017/01/14/6
www.securityfocus.com/bid/95406
www.securitytracker.com/id/1037591
codex.wordpress.org/Version_4.7.1
github.com/WordPress/WordPress/commit/061e8788814ac87706d8b95688df276fe3c8596a
wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/
wpvulndb.com/vulnerabilities/8719