CVE-2017-5490: WordPress

Medium severity, CVSS 6.1. EPSS: 2.4% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the theme-name fallback functionality in wp-includes/class-wp-theme.php in WordPress before 4.7.1 allows remote attackers to inject arbitrary web script or HTML via a crafted directory name of a theme, related to wp-admin/includes/class-theme-installer-skin.php.

Affected products

• WordPress WordPress: up to and including 4.7

Published 2017-01-15. Last modified 2026-06-17.