CVE-2025-58017 is a stored Cross-site Scripting (XSS) vulnerability classified under CWE-79, affecting the bdthemes Ultimate Store Kit Elementor Addons plugin for WordPress, specifically versions up to 2.8.2. This vulnerability arises from improper neutralization of user-supplied input during web page generation, allowing malicious scripts to be stored and later executed in the context of users' browsers when they visit affected pages. The vulnerability requires an attacker with at least low privileges (PR:L) and some user interaction (UI:R) to exploit. The attack vector is remote network-based (AV:N), and the vulnerability has a scope change (S:C), meaning it can affect resources beyond the initially vulnerable component. The CVSS v3.1 base score is 6.5, indicating a medium severity level, with potential impacts on confidentiality, integrity, and availability, albeit limited to partial data exposure and manipulation. Stored XSS can lead to session hijacking, defacement, or redirection to malicious sites, impacting both site administrators and visitors. Since the vulnerability is in a popular WordPress addon used for e-commerce and store functionalities, exploitation could disrupt online store operations and erode customer trust. No known exploits are currently reported in the wild, and no patches are yet available, increasing the urgency for monitoring and mitigation. The vulnerability affects all installations of the Ultimate Store Kit Elementor Addons plugin up to version 2.8.2, which is widely used in WordPress-based e-commerce sites leveraging Elementor page builder.

For European organizations, especially those operating e-commerce platforms or content-rich websites using WordPress with the Ultimate Store Kit Elementor Addons, this vulnerability poses a significant risk. Exploitation could lead to unauthorized script execution, enabling attackers to steal user credentials, perform fraudulent transactions, or deface websites. This can result in reputational damage, loss of customer trust, regulatory non-compliance (e.g., GDPR violations due to data leakage), and potential financial losses. Given the widespread adoption of WordPress and Elementor in Europe, particularly among small and medium enterprises (SMEs) that may lack dedicated security teams, the risk is amplified. Additionally, stored XSS can be leveraged as a pivot point for further attacks within an organization's network, potentially compromising internal systems if administrative users are targeted. The medium severity score reflects the need for timely mitigation to prevent escalation and exploitation, especially in sectors like retail, finance, and public services where web presence is critical.

1. Immediate monitoring of all WordPress sites using Ultimate Store Kit Elementor Addons for suspicious input or unexpected script injections is essential. 2. Restrict plugin usage to trusted users with minimal necessary privileges to reduce the risk of malicious input submission. 3. Implement Web Application Firewalls (WAFs) with rules specifically designed to detect and block XSS payloads targeting this plugin. 4. Employ Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers. 5. Regularly audit and sanitize all user-generated content fields within the plugin, applying strict input validation and output encoding. 6. Stay updated with vendor announcements for patches or updates addressing this vulnerability and apply them promptly once available. 7. Educate site administrators and content editors about the risks of XSS and safe content management practices. 8. Consider temporary disabling or replacing the plugin with alternative solutions if immediate patching is not feasible. 9. Conduct penetration testing focusing on stored XSS vectors to identify and remediate any exploitation paths.