CVE-2026-103688

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

CRITICAL
9.8
CVSS Score
Published: October 28, 2026 at 06:00 AM UTC
Updated: October 28, 2026 at 06:17 PM UTC
1 product affected across 1 vendorCheckout Files Upload for WooCommerce

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Severity
CRITICAL9.8
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/08777aa1-6308-4e99-b2d0-5e43209aa6a6/

SSVC — Action Prioritization

SSVCNo known exploitAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

9.8CRITICALCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-434

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