The JTL-Connector for WooCommerce plugin for WordP is affected by CVE-2026-87855, rated 9.8 (critical). No in-the-wild exploitation has been confirmed in the CISA KEV catalog at the time of writing.
What the flaw is
The NIST National Vulnerability Database describes it as follows:
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.
At a glance
| Field | Detail |
|---|---|
| CVE | CVE-2026-87855 |
| Affected product | The JTL-Connector for WooCommerce plugin for WordP |
| Weakness | CWE-434 (Unrestricted File Upload) |
| CVSS | 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
What defenders should do
- Patch: apply the fixed release from The; check the vendor advisory linked below for the exact versions.
- Inventory: identify every instance of The JTL-Connector for WooCommerce plugin for WordP, prioritising internet-facing ones.
