CVE-2015-5734: WordPress

Medium severity, CVSS 4.3. EPSS: 6.5% chance of exploitation in the next 30 days.

Cross-site scripting (XSS) vulnerability in the legacy theme preview implementation in wp-includes/theme.php in WordPress before 4.2.4 allows remote attackers to inject arbitrary web script or HTML via a crafted string.

Affected products

• WordPress WordPress: up to and including 4.2.3

Published 2015-11-09. Last modified 2026-06-17.