CVE-2025-12878

FunnelKit – Funnel Builder for WooCommerce Checkout <= 3.13.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via wfop_phone Shortcode

6.4 Medium

The FunnelKit – Funnel Builder for WooCommerce Checkout plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the wfop_phone shortcode in all versions up to, and including, 3.13.1.2. This is due to insufficient input sanitization and output escaping on the user-supplied default attribute. This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.26%Up 0.2 points since Nov 19, 2025

What each source reports

CVE List Score used 6.4

FunnelKit – Funnel Builder for WooCommerce Checkout <= 3.13.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via wfop_phone Shortcode

Record: CVE-2025-12878
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

EUVDEUVD-2025-198104 6.4

Record: EUVD-2025-198104
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-5h5f-r6q7-c9qh 6.4

The FunnelKit – Funnel Builder for WooCommerce Checkout plugin for WordPress is vulnerable to...

Record: GHSA-5h5f-r6q7-c9qh
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

NVD 6.4

Record: CVE-2025-12878
CVSS 3.1: 6.4 MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Weakness: CWE-79
Updated: 2026-11-02

Affected products

amans2k funnelkit – funnel builder for woocommerce checkout

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-12878 is a medium vulnerability (CVSS 6.4) in Amans2k Funnelkit – Funnel Builder For Woocommerce Checkout, published November 19, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 17th percentile. No source names a fixed version.