Extra Checkout Options (addon for Extra Product Options & Add-Ons for WooCommerce) <= 2.3.2 - Missing Authorization to Authenticated (Subscriber+) Arbitrary File Upload in eco_save_settings
Strategic Overview
- Status
- Patched in 2.3.3
- Affected Version
<= 2.3.2- CVSS
- 8.8High
- Weakness type
- CWE-434 · Unrestricted Upload of File with Dangerous Type
- CVE
CVE-2026-14270
At a glance
CVE-2026-14270 is a high-severity Unrestricted Upload of File with Dangerous Type vulnerability in the Extra Checkout Options - addon for Extra Product Options plugin WordPress plugin, affecting versions <= 2.3.2. It carries a CVSS score of 8.8 (reachable over the network; low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires an authenticated account at Subscriber level or above. The issue is fixed in version 2.3.3; sites on affected versions should update now. Disclosed July 2026, reported by bashu.
Vulnerability Overview
The Extra Checkout Options (addon for Extra Product Options & Add-Ons for WooCommerce) plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 2.3.2. This is due to missing authorization and nonce validation in the eco_save_settings() function, which allows low-privileged authenticated users to modify the tc_eco_custom_file_types upload allowlist setting, combined with insufficient authorization on the wc_eco_upload_file AJAX action. This makes it possible for authenticated attackers, with Subscriber-level access and above, to allow PHP uploads, upload a PHP file using the frontend upload nonce exposed on cart and checkout pages, and achieve remote code execution. NOTE: This vulnerability was partially fixed in version 2.3.2.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no interaction from a victim user. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.
CWE-434: Unrestricted Upload of File with Dangerous Type
Extra Checkout Options - addon for Extra Product Options plugin <= 2.3.2 carries this weakness at eco_save_settings(), and reaching it takes an account at Subscriber level or above. An unrestricted file upload lets a caller store a file whose type or destination the application does not properly constrain.
If an uploaded file lands anywhere the server will execute, the flaw becomes remote code execution and the site should be treated as fully compromised. For Extra Checkout Options - addon for Extra Product Options plugin the fix is 2.3.3: builds <= 2.3.2 are affected, anything from 2.3.3 onward is not.
Remediation
Update to version 2.3.3, or a newer patched version
How does WordSec protect against this?
An attacker needs Subscriber access first, so the firewall sees the attempt as traffic from a logged-in account: WordSec's web application firewall inspects request payloads before WordPress loads them. Classes like this one can leave something behind, so the staged malware scanner is the second half: it looks for dropped files and modified code rather than for the request that created them. None of that substitutes for the fix: Extra Checkout Options - addon for Extra Product Options plugin 2.3.3 closes this, and updating the plugin is the step that ends it.
- Firewall
- Scanner
- Alerts
External References
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