CVE-2026-103688criticalobserved exploitationCWE-434

CVE-2026-103688: critical vulnerability in Checkout Files Upload for WooCommerce

Checkout Files Upload for WooCommerce < 2.4.0 - Unauthenticated Arbitrary File Upload

Published

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70Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck and has a public proof of concept.

ssvc Actcvss 9.8epss 0.6%
from disclosure to weapon2 days
Published on NVDOct 28
1st PoC+2d
VulnCheckOct 28
The Checkout Files Upload for WooCommerce WordPress plugin before 2.4.0 does not validate uploaded file types when its accepted file types setting is left empty, which it documents as the way to accept all files, allowing unauthenticated users to upload arbitrary files, including PHP files that lead to remote code execution on servers that execute PHP from the uploads directory.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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