Flexible Refund for WooCommerce – EU One Click Return <= 1.0.51 - Authenticated (Customer+) Stored Cross-Site Scripting

2026-07-08 00:00
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Strategic Overview

Vulnerability Overview

The Flexible Refund for WooCommerce – EU One Click Return plugin for WordPress is vulnerable to Stored Cross-Site Scripting in versions up to, and including, 1.0.51 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with customer-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical Analysis

REMEDIATION: Update to version 1.0.52, or a newer patched version --- IDENTIFIER: CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

External References

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C

Flexible Refund for WooCommerce – EU One Click Return <= 1.0.51 - Authenticated (Customer+) Stored Cross-Site Scripting (CVE-2026-57402)