CVE-2022-1393: Wp Subtitle Project Wp Subtitle

Medium severity, CVSS 5.4. EPSS: 0.6% chance of exploitation in the next 30 days.

The WP Subtitle WordPress plugin before 3.4.1 adds a subtitle field and provides a shortcode to display it via [wp_subtitle]. The subtitle is stored as a custom post meta with the key: "wps_subtitle", which is sanitized upon post save/update, however is not sanitized when updating it directly from the post meta update button (via AJAX) - and this makes the XSS exploitable by authenticated users with a role as low as contributor.

Affected products

• Wp Subtitle Project Wp Subtitle: before 3.4.1 (fixed in 3.4.1)

Published 2022-05-16. Last modified 2026-06-17.