CVE-2026-87855criticalCWE-434

CVE-2026-87855: critical vulnerability in ntbyk JTL-Connector for WooCommerce

JTL-Connector for WooCommerce <= 2.4.3 - Unauthenticated Arbitrary File Upload via 'image.push' Method

Published

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.8epss 0.8%
exploitation probability
0.8%top 45% of all CVEs
observed exploitation
nono source reports it
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected products
ntbyk · JTL-Connector for WooCommerce
Related CVEs — ntbyk JTL-Connector for WooCommerce

In the same product, most dangerous first.

CVE-2026-78193HIGHJTL-Connector for WooCommerce <= 2.4.3 - Unauthenticated SQL InjectionEPSS 0.4%CVE-2026-9234MEDIUMJTL-Connector for WooCommerce <= 2.4.1 - Missing Authorization to Authenticated (Subscriber+) Settings Modification via Multiple FunctionsEPSS 0.4%
References
https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/src/Controllers/ImageController.php#L632https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L424https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L885https://plugins.trac.wordpress.org/browser/woo-jtl-connector/tags/2.4.3/vendor/jtl/connector/src/Application/Application.php#L955https://www.wordfence.com/threat-intel/vulnerabilities/id/ed869c1e-ae54-4db2-8147-39050a034c5e?source=cve