CVE-2025-62870 identifies a Missing Authorization vulnerability in the Eupago Gateway for WooCommerce plugin, versions up to and including 4.6.3. This vulnerability arises from incorrectly configured access control security levels within the plugin, which is used to facilitate payment processing on WooCommerce-based e-commerce websites. Missing authorization means that certain functions or endpoints within the plugin do not properly verify whether the requesting user has the necessary permissions to perform sensitive actions. As a result, an attacker could exploit this flaw to execute unauthorized operations, potentially including manipulating payment transactions, accessing sensitive payment data, or altering order statuses without proper privileges. The vulnerability does not require user interaction and can be exploited remotely if the attacker can reach the affected endpoints. Although no public exploits have been reported yet, the risk remains significant due to the financial nature of the plugin and its role in payment processing. The lack of a CVSS score indicates that the vulnerability is newly disclosed, and detailed impact metrics are pending. Eupago Gateway is a payment gateway plugin integrated into WooCommerce, a widely used e-commerce platform, making this vulnerability relevant to many online stores, especially in regions with high WooCommerce adoption. The vulnerability was reserved in late October 2025 and published in December 2025, indicating recent discovery and disclosure. The absence of patches at the time of disclosure suggests that organizations must be vigilant and prepare to apply updates promptly once available.

For European organizations, this vulnerability poses a significant risk to the confidentiality, integrity, and availability of e-commerce payment processing. Unauthorized access to payment gateway functions could lead to fraudulent transactions, financial losses, and exposure of sensitive customer payment information. This could damage customer trust and lead to regulatory repercussions under GDPR due to the mishandling of personal and payment data. The integrity of order processing could be compromised, resulting in incorrect order fulfillment or denial of service to legitimate customers. Given the widespread use of WooCommerce in Europe, especially in countries with mature e-commerce markets, the potential impact is broad. Organizations relying on Eupago Gateway without proper access controls are particularly vulnerable. The absence of known exploits suggests that the threat is currently theoretical but could be weaponized quickly by attackers once details become widely known. The financial sector, retail, and any online business processing payments via WooCommerce and Eupago Gateway are at heightened risk. Additionally, the reputational damage and compliance risks could have long-term consequences for affected businesses.

Organizations should immediately audit their WooCommerce installations to identify if Eupago Gateway for WooCommerce (version 4.6.3 or earlier) is in use. Until a patch is released, restrict access to the plugin’s administrative and API endpoints using network-level controls such as IP whitelisting or web application firewalls (WAFs) with custom rules to block unauthorized requests. Review and tighten user roles and permissions within WordPress and WooCommerce to ensure only trusted administrators have access to payment gateway settings. Monitor logs for unusual activity related to payment processing or plugin endpoints. Engage with Eupago and WooCommerce vendors to obtain updates or patches as soon as they become available and apply them promptly. Consider implementing additional multi-factor authentication (MFA) for administrative accounts to reduce the risk of unauthorized access. Conduct penetration testing focused on access control mechanisms of the payment gateway to identify any other potential weaknesses. Finally, prepare incident response plans specifically addressing payment fraud and data breaches related to this vulnerability.