What is CVE-2026-9278?

CVE-2026-9278 is a medium-severity vulnerability in Form Builder Cp, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 5.4/10. Published 2026-06-15.

How severe is CVE-2026-9278?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Form Builder Cp

CVE-2026-9278

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 ab…

EPSS: 0.002 (5.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Unknown Form Builder Cp — versions 0

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-9278?: CVE-2026-9278 is a medium-severity vulnerability in Form Builder Cp, classified under CWE-79 CROSS-SITE SCRIPTING (XSS). CVSS score: 5.4/10. Published 2026-06-15.
How severe is CVE-2026-9278?: Medium severity. CVSS v3 base score is 5.4 out of 10.