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.
CVE-2026-47100
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-05-19. NVD baseline CVSS 7.5; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 37.1%
- KEV
- Not listed
Published
May 19, 2026
Last Modified
May 19, 2026
Advisory Details (2)
Auto-updated Jun 11, 2026Critical FunnelKit vulnerability threatens 40,000+ WooCommerce checkouts | Sansec
https://sansec.io/research/funnelkit-woocommerce-vulnerability-exploitedFunnel Builder for WooCommerce Checkout < 3.15.0.3 Missing Authorization via AJAX | Advisories | VulnCheck
https://www.vulncheck.com/advisories/funnel-builder-for-woocommerce-checkout-missing-authorization-via-ajaxVendor Advisories for CVE-2026-47100(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 38× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 118 total refreshes for this CVE.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-06-29 20:55 UTCGHSA enrichment
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- 2026-06-01 17:57 UTCGHSA enrichment
- 2026-06-01 13:52 UTCEPSS rescore
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Same CWE
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Frequently asked(5)
What is CVE-2026-47100?
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Dependency Blast Radius
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