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CVE-2026-87855

CRITICAL 9.8 CVSS 3.1
Published
October 14, 2026
Last modified
October 14, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The JTL-Connector for WooCommerce plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.4.3 via the saveImage() function. This is due to the startSession() function accepting an empty jtlauth parameter as a valid credential, combined with insufficient file type validation in handleImagePush(). This makes it possible for unauthenticated attackers to upload files that may be executable, which makes remote code execution possible.

Affected WordPress components

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • ntbyk JTL-Connector for WooCommerce — Up to and including 2.4.3

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/src/Controllers/ImageController.php#L632
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L424
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L885
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L955
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/ed869c1e-ae54-4db2-8147-39050a034c5e?source=cve
  • nvd.nist.gov Official NVD record