What is CVE-2026-12978?

CVE-2026-12978 is a high-severity vulnerability in Funnelkit, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-16.

How severe is CVE-2026-12978?

High severity. CVSS v3 base score is 7.1 out of 10.

XSS in Funnelkit

CVE-2026-12978

The FunnelKit WordPress plugin before 3.15.0.6 does not escape a user-supplied parameter before reflecting it into the HTML response of one of its page-builder AJAX actions, allowing unauthenticated attackers to perform Reflected Cross-Si…

Vulnerability class: XSS (Cross-Site Scripting)

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L.

Affected products

Unknown Funnelkit — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

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

Frequently asked questions

What is CVE-2026-12978?: CVE-2026-12978 is a high-severity vulnerability in Funnelkit, classified under Cross-site Scripting. CVSS score: 7.1/10. Published 2026-07-16.
How severe is CVE-2026-12978?: High severity. CVSS v3 base score is 7.1 out of 10.