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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-18027 Detail

Description

The WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels plugin for WordPress is vulnerable to Directory Traversal in all versions up to, and including, 4.9.8 via the get_image_src_in_base64 function. This makes it possible for authenticated attackers, with subscriber-level access and above, to read the contents of arbitrary files on the server, which can contain sensitive information. The base64-encoded file contents are embedded into the cached invoice HTML and served directly to the attacker via the plugin's own Print/Download invoice endpoints, which require only a valid nonce and access key.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/classes/class-customizer.php#L1453 Wordfence
https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/customizer.php#L1561 Wordfence
https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/admin/modules/customizer/customizer.php#L1607 Wordfence
https://plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/tags/4.9.8/public/modules/invoice/invoice.php#L1934 Wordfence
https://plugins.trac.wordpress.org/changeset/3646629/print-invoices-packing-slip-labels-for-woocommerce Wordfence
https://www.wordfence.com/threat-intel/vulnerabilities/id/a46f270f-d9cb-4bc1-8e10-3fc6646e1d78?source=cve Wordfence

Weakness Enumeration

CWE-ID CWE Name Source
CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') Wordfence  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-18027
NVD Published Date:
08/22/2026
NVD Last Modified:
08/22/2026
Source:
Wordfence