CVE-2025-15513 identifies an authorization vulnerability (CWE-863) in the Float Payment Gateway plugin for WordPress, specifically in the verifyFloatResponse() function. This function improperly handles error conditions, failing to enforce adequate authorization checks on incoming payment verification responses. As a result, unauthenticated attackers can manipulate the plugin to mark any WooCommerce order as failed. The vulnerability affects all plugin versions up to and including 1.1.9. The attack vector is network-based (AV:N), requiring no privileges (PR:N) or user interaction (UI:N), and the scope remains unchanged (S:U). The impact is limited to integrity (I:L) with no confidentiality or availability impact. This means attackers cannot steal data or cause denial of service but can disrupt order processing by falsely marking orders as failed, potentially causing financial and reputational damage to merchants. No patches or exploits are currently publicly available, but the vulnerability is published and should be addressed promptly. The plugin is used in WooCommerce environments, which are widely deployed in e-commerce websites, making this a relevant threat to online retailers using WordPress and WooCommerce with the Float Payment Gateway plugin.

For European organizations, this vulnerability can disrupt e-commerce operations by allowing attackers to falsely mark legitimate orders as failed, leading to customer dissatisfaction, increased support costs, and potential revenue loss. While it does not expose sensitive data or cause service outages, the integrity compromise can undermine trust in the payment process and complicate order fulfillment workflows. Retailers relying on automated order status updates may experience operational inefficiencies and increased manual intervention. The impact is particularly significant for businesses with high transaction volumes or those operating in competitive markets where customer experience is critical. Additionally, repeated exploitation could be used as a vector for targeted disruption or fraud attempts. Given the widespread use of WooCommerce in Europe, especially among small and medium-sized enterprises, the vulnerability poses a tangible risk to the e-commerce sector.

Organizations should monitor for an official patch release from floattechnologies and apply it immediately upon availability. Until a patch is released, administrators can implement custom authorization checks in the verifyFloatResponse() function to validate the authenticity and integrity of payment verification responses, such as verifying cryptographic signatures or tokens. Restricting access to the plugin’s endpoints via web application firewalls or IP whitelisting can reduce exposure. Regularly auditing WooCommerce order statuses for anomalies and implementing alerting mechanisms for unexpected order failures can help detect exploitation attempts early. Additionally, organizations should ensure their WordPress and WooCommerce installations are kept up to date and follow best practices for plugin management, including limiting plugin usage to trusted sources. Educating staff on monitoring and incident response related to payment processing anomalies is also recommended.