CVE-2026-87855 JTL-Connector for WooCommerce <= 2.4.3 - Unauthenticated Arbitrary File Upload via 'image.push' Method
Unauthenticated attackers can upload executable files via the image.push method, leading to remote code execution on the WordPress site.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87855?
CVE-2026-87855 is a critical vulnerability in ntbyk JTL-Connector for WooCommerce, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2026-87855?
How do I fix CVE-2026-87855?
No fix has been published for CVE-2026-87855 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-87855 being exploited?
There is no known exploitation of CVE-2026-87855 in the wild and no public exploit code.
Sources
Also known as GHSA-7mjr-phqx-8hgq.