WebToffee WooCommerce PDF Invoices, Packing Slips, Delivery Notes & Shipping Labels <= 4.9.8 - Authenticated (Subscriber+) Arbitrary File Read via 'customer_note' Parameter

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-18027
StatePUBLISHED
AssignerWordfence
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-23 00:16:50 UTC
Updated2026-08-24 16:41:13 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.008670000 probability, percentile 0.555610000 (date 2026-08-23)

Problem Types: CWE-22 | CWE-22 CWE-22 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Webtoffee WebToffee WooCommerce PDF Invoices Packing Slips Delivery Notes Shipping Labels affected 4.9.8 semver Not specified

References

ReferenceSourceLinkTags
plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/ta... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/ta... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/ta... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/changeset/3646629/print-invoices-packing-slip-labels-for-wooc... [email protected] plugins.trac.wordpress.org
plugins.trac.wordpress.org/browser/print-invoices-packing-slip-labels-for-woocommerce/ta... [email protected] plugins.trac.wordpress.org
www.wordfence.com/threat-intel/vulnerabilities/id/a46f270f-d9cb-4bc1-8e10-3fc66... [email protected] www.wordfence.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: daroo (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-06T08:41:52.000ZVendor Notified
CNA2026-08-22T10:37:45.000ZDisclosed

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