CVE-2026-12978: FunnelKit < 3.15.0.6 - Reflected XSS via Divi Optin Form
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-Site Scripting against logged-in users who open a crafted page. The affected action is only registered when the Divi /builder is active.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-12978?
CVE-2026-12978 has a risk rating of 33, indicating a medium severity level.
How do I fix CVE-2026-12978?
To fix CVE-2026-12978, update the FunnelKit WordPress plugin to version 3.15.0.6 or later.
What type of vulnerability is CVE-2026-12978?
CVE-2026-12978 is a Reflected Cross-Site Scripting (XSS) vulnerability.
Who is affected by CVE-2026-12978?
CVE-2026-12978 affects users of the FunnelKit WordPress plugin prior to version 3.15.0.6.
Can unauthorized attackers exploit CVE-2026-12978?
Yes, unauthorized attackers can exploit CVE-2026-12978 to perform Reflected Cross-Site Scripting on logged-in users.