{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-109220","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","state":"PUBLISHED","assignerShortName":"Wordfence","dateReserved":"2026-10-12T13:45:04.679Z","datePublished":"2026-10-31T06:44:14.919Z","dateUpdated":"2026-10-31T06:44:14.919Z"},"containers":{"cna":{"providerMetadata":{"orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence","dateUpdated":"2026-10-31T06:44:14.919Z"},"affected":[{"vendor":"addonsorg","product":"PDF Invoice for WooCommerce + Drag and Drop Template Builder","versions":[{"version":"0","status":"affected","lessThanOrEqual":"7.1.1","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"The PDF Invoice for WooCommerce + Drag and Drop Template Builder plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 7.1.1 via the 'customer_note' parameter parameter. This is due to insufficient sanitization of the customer_note checkout field, which is inlined verbatim into invoice HTML, entity-decoded back into a live tag by simplehtmldom, reassembled into raw bytes by mPDF, and passed to unserialize() in _getObjAttr without validation. This makes it possible for unauthenticated attackers to execute code on the server. An unauthenticated attacker can trigger the vulnerable code path on a default install by placing an anonymous WooCommerce checkout via the public Store API (POST /wc/store/v1/checkout) using a Direct Bank Transfer or cheque payment method, which automatically transitions the order to 'on-hold' status and fires the plugin's invoice-generation hook."}],"title":"PDF Invoice for WooCommerce + Drag and Drop Template Builder <= 7.1.1 - Unauthenticated PHP Object Injection to Remote Code Execution via 'customer_note' Checkout Field","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/1bc3529c-6161-4b89-8a35-c3a9b7b8c308?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/vendor/mpdf/mpdf/src/Mpdf.php#L9105"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/woocommerce/shortcodes.php#L708"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/woocommerce/emails/index.php#L70"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/frontend/index.php#L378"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/libs/HtmlDocument.php#L300"},{"url":"https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/libs/HtmlNode.php#L1266"},{"url":"https://downloads.wordpress.org/plugin/pdf-for-woocommerce.7.2.0.zip"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-502 Deserialization of Untrusted Data","cweId":"CWE-502","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":9.8,"baseSeverity":"CRITICAL"}}],"credits":[{"lang":"en","type":"finder","value":"Osman Hussein"}],"timeline":[{"time":"2026-10-12T13:59:56.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-10-30T17:33:25.000Z","lang":"en","value":"Disclosed"}]}}}