Live › vulnerability › CVE-2026-100316
Go to dashboardThe European VAT Compliance Assistant plugin for WooCommerce stores the CF-IPCountry request header verbatim into order metadata during guest checkout without sanitizing it. An unauthenticated attacker can plant a script that runs in the browser of any user who opens the affected order page, such as an administrator.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Sites running the European VAT Compliance Assistant for WooCommerce plugin at version 1.36.10 or earlier are exposed, because any guest can submit a checkout with a crafted CF-IPCountry header. The payload executes when someone views the affected order, so sites where only logged-out visitors reach checkout are still exposed if staff open those orders in the admin. Sites without the plugin, or running a newer version, can skip it.
No product ranges from the sources yet.
1.36.10 or lower in the WordPress plugins screen or wp plugin list1.36.10Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The European VAT Compliance Assistant for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via CF-IPCountry Header in all versions up to, and including, 1.36.10 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The malicious header value is persisted verbatim into order post-meta during a guest checkout, meaning no account or authentication is required to plant the payload.
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