CVE-2017-5491

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.

• CWE-1188

• http://www.debian.org/security/2017/dsa-3779
• http://www.openwall.com/lists/oss-security/2017/01/14/6Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/95406
• http://www.securitytracker.com/id/1037591
• https://codex.wordpress.org/Version_4.7.1Release Notes, Vendor Advisory
• https://github.com/WordPress/WordPress/commit/061e8788814ac87706d8b95688df276fe3c8596aPatch
• https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/Vendor Advisory
• https://wpvulndb.com/vulnerabilities/8719
• http://www.debian.org/security/2017/dsa-3779
• http://www.openwall.com/lists/oss-security/2017/01/14/6Mailing List, Third Party Advisory
• http://www.securityfocus.com/bid/95406
• http://www.securitytracker.com/id/1037591
• https://codex.wordpress.org/Version_4.7.1Release Notes, Vendor Advisory
• https://github.com/WordPress/WordPress/commit/061e8788814ac87706d8b95688df276fe3c8596aPatch
• https://wordpress.org/news/2017/01/wordpress-4-7-1-security-and-maintenance-release/Vendor Advisory
• https://wpvulndb.com/vulnerabilities/8719

Published

Jan 15, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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