Payment Gateway for Redsys & WooCommerce Lite <= 7.0.0 - Improper Verification of Cryptographic Signature to Unauthenticated Payment Status Manipulation
| CVE | CVE-2026-5050 |
|---|---|
| CVSS | 7.5 (High) |
| Publicly Published | April 15, 2026 |
| Last Updated | April 16, 2026 |
| Researcher |
Nguyen Ngoc Duc (duc193)
|
Description
The Payment Gateway for Redsys & WooCommerce Lite plugin for WordPress is vulnerable to Improper Verification of Cryptographic Signature in versions up to, and including, 7.0.0 due to successful_request() handlers calculating a local signature but not validating Ds_Signature from the request before accepting payment status across the Redsys, Bizum, and Google Pay gateway flows. This makes it possible for unauthenticated attackers to forge payment callback data and mark pending orders as paid when they know a valid order key and order amount, potentially allowing checkout completion and product or service fulfillment without a successful payment.
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Vulnerability Details for Payment Gateway for Redsys & WooCommerce Lite
| Software Type | Plugin |
|---|---|
| Software Slug | woo-redsys-gateway-light (view on wordpress.org) |
| Patched? | Yes |
| Remediation | Update to version 7.0.1, or a newer patched version |
| Affected Version |
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| Patched Version |
|
Recent vulnerabilities in Payment Gateway for Redsys & WooCommerce Lite
| # | Title | CVE ID | CVSS | Researchers | Date |
|---|---|---|---|---|---|
| 1 | Payment Gateway for Redsys & WooCommerce Lite <= 7.0.0 - Missing Authorization | CVE-2026-40741 | Nguyen Ba Khanh | April 16, 2026 |
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