CVE-2026-100316
7.2, highDavidanderson European VAT Compliance Assistant for WooCommerce Cross-Site Scripting Vulnerability
- CVSS
- 7.2, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 17 Oct 2026yesterday
Description
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.
Details
- Vendor
- Davidanderson
- Product
- European VAT Compliance Assistant for WooCommerce
- Weakness
- CWE-79 (opens in a new tab)
- Status
- Received
- Updated
- 17 Oct 2026
- Assigner
- security@wordfence.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
References 6
Other references 6
- plugins.trac.wordpress.org /browser/woocommerce-eu-vat-compliance/tags/1.36.10/bootstrap.php#L1779 (opens in a new tab)
- plugins.trac.wordpress.org /browser/woocommerce-eu-vat-compliance/tags/1.36.10/record-order-details.php#L222 (opens in a new tab)
- plugins.trac.wordpress.org /browser/woocommerce-eu-vat-compliance/tags/1.36.10/record-order-details.php#L740 (opens in a new tab)
- plugins.trac.wordpress.org /changeset/3713548/woocommerce-eu-vat-compliance/trunk/record-order-details.php (opens in a new tab)
- plugins.trac.wordpress.org /changeset?reponame&new=3713548%40woocommerce-eu-vat-compliance&old=3676299%40woocommerce-eu-vat-compliance (opens in a new tab)
- wordfence.com /threat-intel/vulnerabilities/id/9f17d266-e64f-4721-9c8d-5bc72791ef01?source=cve (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
Is CVE-2026-100316 in your network?
This page tells you how dangerous CVE-2026-100316 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
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EXYS7600 OCELOT
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Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 18 Oct 2026, not the live upstream state.