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.
CVE-2025-12878 is a medium severity with CVSS 6.4 Stored Cross-Site Scripting issue affecting the Plugin FunnelKit – Funnel Builder for WooCommerce Checkout. It affects Versions up to 3.13.1.2 and is fixed in 3.13.1.3.
CVE-2025-12878 is tracked for the Plugin FunnelKit – Funnel Builder for WooCommerce Checkout as medium severity with CVSS 6.4. The affected range is Versions up to 3.13.1.2. Update FunnelKit – Funnel Builder for WooCommerce Checkout to 3.13.1.3 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
funnel-builder
View on wordpress.org
|
| CVE | CVE-2025-12878 |
| Patched Versions |
3.13.1.3
|
| Affected Versions |
Versions up to 3.13.1.2
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Funnel Builder by FunnelKit <= 3.9.0 - Unauthenticated Local File Inclusion
Funnel Builder by FunnelKit <= 3.11.1 - Unauthenticated Local File Inclusion
FunnelKit – Funnel Builder for WooCommerce Checkout <= 3.15.0.1 - Unauthenticated SQL Injection
FunnelKit – Funnel Builder for WooCommerce Checkout <= 3.13.1.5 - Unauthenticated SQL Injection
Funnel Builder for WordPress by FunnelKit <= 2.14.3 - Authenticated(Administrator+) SQL Injection
Funnel Builder by FunnelKit <= 3.13.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting
Funnel Builder for WordPress by FunnelKit – Customize WooCommerce Checkout Pages, Create Sales Funnels, Order Bumps & One Click Upsells <= 3.3.1 - Authenticated (Author+) Stored Cross-Site Scripting via SVG Upload
FunnelKit <= 3.12.0 - Reflected Cross-Site Scripting
This record contains material that is subject to copyright
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more
