CVE-2026-87855 JTL-Connector for WooCommerce - Unrestricted File Upload

JTL-Connector for WooCommerce WordPress plugin <= 2.4.3 contains an arbitrary file upload vulnerability caused by insufficient file type validation and improper authentication in saveImage(), letting unauthenticated attackers upload executable files and achieve remote code execution.

CVSS base score 9.8 /10
Critical
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.79% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Unrestricted File Upload
Impact
Remote Code Execution, Unrestricted File Upload
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
14 October 2026
Updated
15 October 2026
Weakness
CWE-434

Vendor fix

Update to the latest version beyond 2.4.3.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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