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Vulnerability record · CVE-2026-47100 · published 19 May 2026

CVE-2026-47100: Missing authorization vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.49% · top 60.3% CWE-862 · Missing authorization Deferred
8.7CVSS 4.0 base score
0.49%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
24 Jul 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://plugins.trac.wordpress.org/changeset/3530797/funnel-builder/tags/3.15.0.3/modules/checkouts/includes/class-wfacp
https://sansec.io/research/funnelkit-woocommerce-vulnerability-exploited
https://www.vulncheck.com/advisories/funnel-builder-for-woocommerce-checkout-missing-authorization-via-ajax
https://sansec.io/research/funnelkit-woocommerce-vulnerability-exploited

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Source: NIST National Vulnerability Database (record CVE-2026-47100), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.