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

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CVE CVE-2025-12878
CVSS Medium (6.4)
Publicly Published November 18, 2025
Last Updated November 19, 2025
Researcher zaim
Description

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.

References

1 affected software package

Software Type Plugin
Software Slug funnel-builder (view on wordpress.org)
Patched? Yes
Affected Version
  • <= 3.13.1.2
Patched Version
  • 3.13.1.3
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