CVE-2023-4390: Ays-Pro Popup Box

Medium severity, CVSS 4.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The Popup box WordPress plugin before 3.7.2 does not sanitize and escape some Popup fields, which could allow high-privilege users such as an administrator to inject arbitrary web scripts even when the unfiltered_html capability is disallowed (for example in a multisite setup).

Affected products

• Ays-Pro Popup Box: before 3.7.2 (fixed in 3.7.2)

Published 2023-10-31. Last modified 2026-06-17.