CVE-2025-14895 is an authorization bypass vulnerability classified under CWE-862 affecting the PopupKit WordPress plugin, which provides popup building with gamification, multi-step popups, page-level targeting, and WooCommerce triggers. The vulnerability arises because the plugin fails to properly verify user authorization when accessing the /popup/logs REST API endpoint. This endpoint exposes analytics data including device types, browser information, countries, referrer URLs, and campaign metrics. Any authenticated user with at least Subscriber-level privileges can exploit this flaw to read and delete this sensitive data. The vulnerability is remotely exploitable without user interaction and requires only low privileges, making it easier for attackers to leverage. The CVSS 3.1 base score is 5.4 (medium), reflecting the moderate impact on confidentiality and integrity but no impact on availability. No patches are currently linked, and no known exploits have been reported in the wild. The flaw affects all versions up to and including 2.2.0 of the plugin. The lack of proper authorization checks in a REST API endpoint is a common security oversight that can lead to data leakage and manipulation, undermining trust in analytics and marketing data integrity.

For European organizations, this vulnerability can lead to unauthorized disclosure and manipulation of marketing analytics data, which can distort business insights and decision-making. Attackers with subscriber-level access could delete or alter campaign metrics, potentially sabotaging marketing efforts or causing financial losses. The exposure of device, browser, and geographic data could also aid in profiling users or conducting further targeted attacks. Organizations relying on WooCommerce and popup marketing tools are particularly vulnerable, as these features are widely used in e-commerce and digital marketing sectors. While the vulnerability does not directly impact system availability or critical infrastructure, the compromise of analytics data can have reputational and operational consequences. Additionally, GDPR considerations around personal data exposure may impose legal and compliance risks if user-related data is involved. The medium severity rating indicates a moderate but non-trivial risk that should be addressed promptly to prevent exploitation.

European organizations should immediately audit their WordPress installations to identify the presence of the vulnerable PopupKit plugin versions (up to 2.2.0). Until an official patch is released, administrators should restrict access to the /popup/logs REST API endpoint by implementing custom access controls, such as limiting REST API permissions to trusted administrator roles only. Employing Web Application Firewalls (WAFs) with rules to block unauthorized REST API calls can provide an additional layer of defense. Monitoring and logging access to the REST API endpoints should be enhanced to detect suspicious activities, particularly from users with subscriber-level privileges. Organizations should also review user roles and permissions to minimize unnecessary elevated access. Once a patch becomes available, prompt application is critical. Additionally, consider isolating marketing analytics data and backing it up regularly to prevent data loss from unauthorized deletions. Educating site administrators about the risks of installing plugins without proper security vetting can reduce future exposure.