CVE-2019-16220: Debian Linux

Medium severity, CVSS 6.1. EPSS: 2.6% chance of exploitation in the next 30 days.

In WordPress before 5.2.3, validation and sanitization of a URL in wp_validate_redirect in wp-includes/pluggable.php could lead to an open redirect if a provided URL path does not start with a forward slash.

Affected products

• Debian Debian Linux: version 8.0 only; version 9.0 only; version 10.0 only
• WordPress WordPress: before 5.2.3 (fixed in 5.2.3)

Published 2019-09-11. Last modified 2026-06-17.