CVE-2026-103688
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability49. percentile0.6%
ProductCheckout Files Upload for WooCommerce
PublishedOct 28, 2026
First seenOct 28, 2026
Weakness typeCWE-434Unrestricted upload of dangerous file type
How to fix
Update
- Checkout Files Upload for WooCommerce2.4.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Checkout Files Upload for WooCommerce | v < 2.4.0 | 2.4.0 |
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