CVE-2025-66114 identifies a missing authorization vulnerability in the 'Show Variations as Single Products' WooCommerce plugin developed by theme funda, affecting all versions up to 2.0. This plugin modifies WooCommerce behavior by displaying product variations as individual products on shop and category pages. The vulnerability arises from incorrectly configured access control mechanisms that fail to verify whether a user is authorized to access certain plugin functionality or data endpoints. Specifically, the flaw allows remote attackers to access restricted information or features without any authentication or user interaction, as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N). The impact is limited to confidentiality, meaning sensitive product variation data could be exposed, but the integrity and availability of the system remain unaffected. No known exploits have been reported in the wild, and no official patches have been released at the time of publication. The vulnerability was published on November 21, 2025, and assigned a medium severity rating with a CVSS score of 5.3. The issue is particularly relevant for e-commerce websites using WooCommerce with this plugin installed, as it could lead to unauthorized data disclosure that might aid further attacks or competitive intelligence gathering. The lack of authentication requirements and ease of exploitation make it a concern for online retailers relying on this plugin to manage product variations.

For European organizations, especially e-commerce businesses using WooCommerce with the 'Show Variations as Single Products' plugin, this vulnerability poses a risk of unauthorized disclosure of product variation data. While it does not directly compromise system integrity or availability, exposure of sensitive product information could lead to competitive disadvantages, customer trust erosion, or facilitate more targeted attacks such as fraud or phishing. Given the widespread adoption of WooCommerce in Europe, particularly in countries with mature e-commerce markets like Germany, the UK, France, and the Netherlands, the impact could be significant for retailers relying on this plugin. Additionally, unauthorized data access may contravene data protection regulations such as GDPR if personal or sensitive customer data is indirectly exposed through this vulnerability. Although no active exploitation is known, the ease of exploitation without authentication increases the urgency for mitigation to prevent opportunistic attackers from leveraging this flaw.

1. Monitor official channels from theme funda and WooCommerce for security patches addressing CVE-2025-66114 and apply updates promptly once available. 2. Until patches are released, restrict access to the affected plugin’s endpoints by implementing web application firewall (WAF) rules that block unauthorized requests targeting plugin-specific URLs or parameters. 3. Employ server-level access controls such as IP whitelisting or authentication gateways to limit exposure of the WooCommerce site’s administrative and plugin-related interfaces. 4. Conduct regular security audits and penetration tests focusing on WooCommerce plugins to identify and remediate similar access control weaknesses. 5. Educate development and operations teams about the risks of missing authorization vulnerabilities and enforce secure coding and configuration practices for third-party plugins. 6. Consider disabling or replacing the vulnerable plugin with alternative solutions that have verified secure access controls if immediate patching is not feasible. 7. Monitor logs for unusual access patterns or repeated requests to plugin endpoints that could indicate exploitation attempts. 8. Review and minimize the amount of sensitive data exposed via product variations to reduce potential impact.