CVE-2026-9278: Unknown Form Builder CP

Medium severity, CVSS 5.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Form Builder CP WordPress plugin before 1.2.47 does not properly sanitize a form configuration value before storing it and using it as part of a client-side script execution, allowing authenticated users with Editor-level access and above to perform Stored Cross-Site Scripting attacks against any visitor of a page rendering the affected form, even when the `unfiltered_html` capability is disallowed (e.g. in a multisite network).

Affected products

• Unknown Form Builder CP: before 1.2.47 (fixed in 1.2.47)

Published 2026-06-15. Last modified 2026-07-21.