CVE-2026-47100
Funnel Builder for WooCommerce Checkout < 3.15.0.3 Missing Authorization via AJAX
CVSS Score
7.5
EPSS Score
0.0%
EPSS Percentile
0th
Funnel Builder for WooCommerce Checkout prior to 3.15.0.3 contains a missing authorization vulnerability in the public checkout endpoint that allows unauthenticated attackers to invoke internal methods and write arbitrary data to the plugin's External Scripts global setting. Attackers can inject malicious JavaScript through the External Scripts setting that executes in the browsers of all checkout page visitors.
| CWE | CWE-862 |
| Vendor | funnelkit |
| Product | funnel builder for woocommerce checkout |
| Published | May 19, 2026 |
| Last Updated | May 19, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
FunnelKit / Funnel Builder for WooCommerce Checkout
0 < 3.15.0.3
References
sansec.io: https://sansec.io/research/funnelkit-woocommerce-vulnerability-exploited plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3530797/funnel-builder/tags/3.15.0.3/modules/checkouts/includes/class-wfacp-ajax-controller.php vulncheck.com: https://www.vulncheck.com/advisories/funnel-builder-for-woocommerce-checkout-missing-authorization-via-ajax