CVE-2026-109220 (GCVE-0-2026-109220)

Vulnerability from cvelistv5 – Published: 2026-10-31 06:44 – Updated: 2026-10-31 06:44
VLAI
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
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-502 - Deserialization of Untrusted Data
Assigner
Wordfence CNA under the mitre root
CNA scorecard C 65/100 over 2401 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
addonsorg PDF Invoice for WooCommerce + Drag and Drop Template Builder Affected: 0 , ≤ 7.1.1 (semver)
guessed Create a notification for this product.
Credits
Osman Hussein
Show details on NVD website
To clipboard 

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          "vendor": "addonsorg",
          "versions": [
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          "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 \u0027customer_note\u0027 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 \u0027on-hold\u0027 status and fires the plugin\u0027s invoice-generation hook."
        }
      ],
      "metrics": [
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        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
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          "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"
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          "url": "https://plugins.trac.wordpress.org/browser/pdf-for-woocommerce/tags/7.1.1/woocommerce/shortcodes.php#L708"
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        },
        {
          "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"
        },
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          "url": "https://downloads.wordpress.org/plugin/pdf-for-woocommerce.7.2.0.zip"
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      "timeline": [
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          "lang": "en",
          "time": "2026-10-12T13:59:56.000Z",
          "value": "Vendor Notified"
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          "time": "2026-10-30T17:33:25.000Z",
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    }
  },
  "cveMetadata": {
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    "dateReserved": "2026-10-12T13:45:04.679Z",
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    "state": "PUBLISHED"
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                "vendor": "addonsorg",
                "versions": [
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            "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 \u0027customer_note\u0027 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 \u0027on-hold\u0027 status and fires the plugin\u0027s invoice-generation hook."
          }
        ],
        "id": "CVE-2026-109220",
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        "metrics": {
          "cvssMetricV31": [
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                "attackVector": "NETWORK",
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          }
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      }
    }
  }
}



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