Stored Cross-Site Scripting Vulnerability in FunnelKit Plugin for WooCommerce Checkout
CVE-2025-12878

6.4MEDIUM

Key Information:

Vendor

WordPress
Status
Funnelkit – Funnel Builder For WooCommerce Checkout
Vendor
CVE Published:
19 November 2025

What is CVE-2025-12878?

The FunnelKit plugin for WooCommerce Checkout is susceptible to a Stored Cross-Site Scripting vulnerability caused by inadequate input sanitization and output escaping on the user-supplied default attribute of the wfop_phone shortcode. Authenticated attackers with Contributor-level access or higher can exploit this vulnerability to inject arbitrary web scripts into pages, which will execute when users visit those compromised pages. This could lead to a range of malicious activities, including data theft or user session hijacking.

Affected Version(s)

FunnelKit – Funnel Builder for WooCommerce Checkout 0 <= 3.13.1.2

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://wordpress.org/plugins/funnel-builder
https://plugins.trac.wordpress.org/browser/funnel-builder...

CVSS V3.1

Score:
6.4
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Djaidja Moundjid
.