# CVE-2026-66480: YITH WooCommerce Product Add-Ons sensitive data exposure

Source: https://junglewise.ai/threats/cve-2026-66480-exposure-of-sensitive-system-information-to-an-unauthorized  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-10. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-66480 · Severity: medium · CVSS 5.3 · Published 2026-10-10

YITH WooCommerce Product Add-Ons is a WordPress plugin that extends WooCommerce with customizable product options for online stores. A vulnerability in this plugin exposes sensitive system information to unauthorized users, potentially leaking private data such as passwords, emails, or payment details without requiring authentication.

Technologies: [YITH WooCommerce Product Add-Ons](https://junglewise.ai/threats/technologies/woocommerce-product-add-ons). Vendors: [YITH](https://junglewise.ai/threats/vendors/yith).

## Quick answers

**Is CVE-2026-66480 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-66480 being exploited in the wild.

**How severe is CVE-2026-66480?** Medium severity, with a CVSS score of 5.3, published 10 October 2026.

**Which products and versions are affected?** YITH WooCommerce Product Add-Ons through 4.34.0.

**Is there a fix for CVE-2026-66480?** Yes: fixed in 4.34.1. Until then: Update to version 4.34.1 or later. If immediate patching is not possible, contact your hosting provider or web developer for assistance. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-66480 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-66480?** Check whether you run YITH WooCommerce Product Add-Ons at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 4.34.1

Update to version 4.34.1 or later. If immediate patching is not possible, contact your hosting provider or web developer for assistance.

## Technical details

The vulnerability allows unauthenticated attackers to retrieve embedded sensitive system information through an unauthorized control sphere, exposing data normally protected from external access. This information disclosure affects WooCommerce Product Add-Ons through version 4.34.0 and has been patched in version 4.34.1. The attack requires no authentication or user interaction and can be exploited remotely over the network.

## Affected products

- YITH WooCommerce Product Add-Ons through 4.34.0

## Timeline

- 2026-01-24: disclosed
- 2026-10-08: advisory
- 2026-10-10: other: Published to NVD

## References

- [https://wordpress.org/plugins](https://wordpress.org/plugins)
- [https://patchstack.com/database/wordpress/plugin/yith-woocommerce-product-add-ons/vulnerability/wordpress-yith-woocommerce-product-add-ons-plugin-4-34-0-sensitive-data-exposure-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/yith-woocommerce-product-add-ons/vulnerability/wordpress-yith-woocommerce-product-add-ons-plugin-4-34-0-sensitive-data-exposure-vulnerability?_s_id=cve)

## Related threats

- [YITH WooCommerce Product Add-Ons unauthenticated bypass](https://junglewise.ai/threats/cve-2026-107868-unauthenticated-bypass-vulnerability-in-yith-woocommerce-product)
- [YITH WooCommerce Product Add-Ons SQL injection](https://junglewise.ai/threats/cve-2026-42383-yith-woocommerce-product-add-ons-sql-injection)