CVE-2026-87855

EUVD-2026-100800
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 55.26%
Common Weakness Enumeration
References
https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/src/Controllers/ImageController.php#L632
https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L424
https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L885
https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L955
https://www.wordfence.com/threat-intel/vulnerabilities/id/ed869c1e-ae54-4db2-8147-39050a034c5e?source=cve