CVE-2026-84028: Unknown Bold Page Builder

Medium severity, CVSS 6.8. EPSS: 0.4% chance of exploitation in the next 30 days.

The Bold Page Builder WordPress plugin before 5.9.9 does not sanitise and escape a shortcode attribute before outputting it in an HTML attribute, allowing users with the Contributor role and above to inject arbitrary web scripts that execute when a user views the affected page.

Affected products

• Unknown Bold Page Builder: before 5.9.9 (fixed in 5.9.9)

Published 2026-09-06. Last modified 2026-09-08.