WooCommerce Payment Gateway Vulnerability Exposes Order Management to Attackers
CVE-2026-87843
Key Information:
- Vendor
WordPress
- Vendor
- CVE Published:
- 14 October 2026
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What is CVE-2026-87843?
The Trust Payments Gateway for WooCommerce plugin prior to version 3.1.0 contains a significant security flaw that allows attackers to exploit the lack of verification on payment responses. When users return from the hosted payment page, the plugin fails to authenticate the payment provider's response and does not associate it with a specific order. This flaw enables unauthorized individuals to mark any order as paid, irrespective of whether a legitimate transaction has occurred, while also exposing sensitive order and customer data. It is crucial for users of this plugin to update to the latest version to mitigate this vulnerability.
Affected Version(s)
Trust Payments Gateway for WooCommerce 0 < 3.1.0
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.