What’s Vulnerable › Vulnerabilities

CVE-2025-12878: FunnelKit – Funnel Builder for WooCommerce Checkout <= 3.13.1.2 - Authenticated (Contributor+) Stored Cross-Site Scripting via wfop_phone Shortcode

• Severity: medium (CVSS 6.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-19 · updated 2026-10-18
• Weakness: CWE-79

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.

Affected products

• amans2k FunnelKit – Funnel Builder for WooCommerce Checkout: through 3.13.1.2

References

• https://plugins.trac.wordpress.org/browser/funnel-builder/tags/3.13.1.2/modules/optins/merge-tags/class-bwf-optin-tags.php#L101
• https://plugins.trac.wordpress.org/browser/funnel-builder/tags/3.13.1.2/modules/optins/merge-tags/class-bwf-optin-tags.php#L116
• https://plugins.trac.wordpress.org/browser/funnel-builder/tags/3.13.1.2/modules/optins/merge-tags/class-bwf-optin-tags.php#L30
• https://plugins.trac.wordpress.org/browser/funnel-builder/tags/3.13.1.2/modules/optins/merge-tags/class-bwf-optin-tags.php#L96
• https://plugins.trac.wordpress.org/changeset/3397106/funnel-builder/tags/3.13.1.3/merge-tags/class-bwf-contact-tags.php
• https://wordpress.org/plugins/funnel-builder
• https://www.wordfence.com/threat-intel/vulnerabilities/id/6f54053e-30ff-449b-b696-92d503011a4d?source=cve

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