CVE-2019-25744: Popup-Builder Popup Builder

Medium severity, CVSS 5.4. EPSS: 0.2% chance of exploitation in the next 30 days.

WordPress Popup Builder 3.49 contains a persistent cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by breaking out of option tags in the post_title parameter. Attackers can submit crafted POST requests to the post.php endpoint with script payloads in the post_title field that execute when pages or posts display popup selections.

Affected products

• Popup-Builder Popup Builder: version 3.49 only

Published 2026-06-04. Last modified 2026-07-22.