CVE-2026-103688 Checkout Files Upload for WooCommerce < 2.4.0 - Unauthenticated Arbitrary File Upload
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-103688?
CVE-2026-103688 is a critical vulnerability in Unknown Checkout Files Upload for WooCommerce, published on 28 Oct 2026.
Official 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.
Weakness: CWE-434
Which versions are affected by CVE-2026-103688?
How do I fix CVE-2026-103688?
No fix has been published for CVE-2026-103688 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-103688 being exploited?
There is no known exploitation of CVE-2026-103688 in the wild and no public exploit code.
Sources
Also known as GHSA-h6g6-j3rf-hcqm.