FKIE_CVE-2026-109217

Vulnerability from fkie_nvd - Published: 2026-10-31 07:16 - Updated: 2026-11-02 16:19
Severity
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
The PDF Invoices & Packing Slips for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.16.5 via the 'invoice_number (via document filename)' parameter. This makes it possible for unauthenticated attackers to extract another customer's complete invoice PDF — including billing identity, shipping address, private order notes, line items, prices, dates, order ID, and invoice number — delivered directly to the attacker's email as an order confirmation attachment. Exploitation requires the plugin's yearly invoice number reset option to be enabled, and the attacker's guest-checkout order must trigger a processing email within 60 seconds of a victim order that shares the same yearly-reset invoice number.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Documents/Invoice.php#L146
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L181
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L239
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L253
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?reponame=&old=3759839%40woocommerce-pdf-invoices-packing-slips&new=3759839%40woocommerce-pdf-invoices-packing-slips
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/e68495ad-53ab-4c6b-aecc-1e4bfe34aa0d?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "PDF Invoices \u0026 Packing Slips for WooCommerce",
          "vendor": "wpovernight",
          "versions": [
            {
              "lessThanOrEqual": "5.16.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@wordfence.com"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The PDF Invoices \u0026 Packing Slips for WooCommerce plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 5.16.5 via the \u0027invoice_number (via document filename)\u0027 parameter. This makes it possible for unauthenticated attackers to extract another customer\u0027s complete invoice PDF \u2014 including billing identity, shipping address, private order notes, line items, prices, dates, order ID, and invoice number \u2014 delivered directly to the attacker\u0027s email as an order confirmation attachment. Exploitation requires the plugin\u0027s yearly invoice number reset option to be enabled, and the attacker\u0027s guest-checkout order must trigger a processing email within 60 seconds of a victim order that shares the same yearly-reset invoice number."
    }
  ],
  "id": "CVE-2026-109217",
  "lastModified": "2026-11-02T16:19:19.997",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-10-31T07:16:34.220",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Documents/Invoice.php#L146"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L181"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L239"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/woocommerce-pdf-invoices-packing-slips/tags/5.16.4/includes/Main.php#L253"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?reponame=\u0026old=3759839%40woocommerce-pdf-invoices-packing-slips\u0026new=3759839%40woocommerce-pdf-invoices-packing-slips"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e68495ad-53ab-4c6b-aecc-1e4bfe34aa0d?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-524"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}



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