CVE-2025-62953 is a missing authorization vulnerability found in the nanbu Welcart e-Commerce plugin, affecting versions up to 2.11.24. The flaw arises from incorrectly configured access control security levels, which allow attackers with low privileges (PR:L) to bypass authorization checks and perform unauthorized actions. The vulnerability is exploitable remotely over the network (AV:N) without requiring user interaction (UI:N), making it easier to exploit. The impact is critical, affecting confidentiality, integrity, and availability (C:H/I:H/A:H) of the affected systems. Attackers could potentially access sensitive customer data, modify orders, manipulate pricing, or disrupt the e-commerce service. Although no known exploits are currently reported in the wild, the high CVSS score (8.8) indicates a serious risk. The vulnerability affects a widely used e-commerce plugin for WordPress, which is popular among small to medium-sized businesses. The lack of official patches at the time of publication necessitates immediate mitigation efforts by administrators. The vulnerability highlights the importance of proper access control implementation in web applications, especially in e-commerce environments where sensitive financial and personal data is processed.

For European organizations, this vulnerability could lead to severe consequences including unauthorized access to customer personal and payment information, resulting in data breaches and regulatory non-compliance under GDPR. Attackers could alter order details or prices, causing financial losses and reputational damage. The availability impact could disrupt online sales operations, affecting business continuity. Given the widespread use of WordPress and its plugins in Europe, especially in countries with strong e-commerce sectors like Germany, France, and the UK, the threat is significant. Compromise could also lead to secondary attacks such as phishing or malware distribution using the compromised e-commerce platform. The breach of customer trust and potential fines for data protection violations could have long-term negative effects on affected businesses.

1. Immediately audit and restrict user privileges to the minimum necessary, especially for roles with access to the Welcart e-Commerce plugin. 2. Monitor web server and application logs for unusual access patterns or unauthorized actions related to the plugin. 3. Temporarily disable or restrict access to the affected plugin functionalities if possible until a patch is released. 4. Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting the plugin endpoints. 5. Regularly check for official patches or updates from the vendor and apply them promptly once available. 6. Conduct a thorough security review of access control configurations across the e-commerce platform to prevent similar issues. 7. Educate administrators and developers on secure access control best practices to avoid misconfigurations. 8. Consider isolating the e-commerce environment or using additional authentication layers to reduce exposure.