CVE-2026-13168 in Eventin Plugin
Summary
by MITRE • 08/12/2026
The Eventin WordPress plugin before 4.1.20 does not properly restrict access to stored customer records, allowing users with contributor-level access and above to read other customers' personal data such as names and email addresses.
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Analysis
by VulDB Data Team • 08/12/2026
The Eventin WordPress plugin vulnerability represents a critical access control flaw that undermines the security of customer data management within WordPress environments. This issue affects versions prior to 4.1.20 and demonstrates a fundamental failure in implementing proper authorization mechanisms. The vulnerability allows users with contributor-level privileges or higher to bypass intended access restrictions and gain unauthorized visibility into stored customer records, creating a significant data exposure risk for organizations relying on the plugin for event management and customer relationship handling.
The technical flaw manifests as insufficient input validation and access control enforcement within the plugin's customer data retrieval mechanisms. Contributors and higher-privileged users can exploit this weakness to query and access personal information belonging to other customers without proper authentication or authorization checks. This occurs because the plugin fails to implement proper role-based access controls when serving customer data requests, allowing unauthorized users to traverse the data access layer and retrieve sensitive information including names and email addresses that should remain protected within their respective user contexts.
The operational impact of this vulnerability extends beyond simple privacy concerns to encompass potential regulatory compliance violations and reputational damage. Organizations using Eventin plugin may inadvertently violate data protection regulations such as gdpr, ccpa, and other privacy frameworks that mandate strict access controls for personal data. The exposure of customer email addresses and names creates opportunities for phishing attacks, spam campaigns, and social engineering attempts that could compromise not only the affected users but also the broader organization's security posture. This vulnerability essentially transforms the plugin from a legitimate event management tool into a potential vector for data leakage and privacy breaches.
Mitigation strategies should focus on immediate plugin updates to version 4.1.20 or later, where the access control restrictions have been properly implemented. Administrators must also conduct comprehensive audits of user roles and permissions within their WordPress installations to ensure that contributors and other lower-privileged users cannot access customer data they should not legitimately possess. Additional security measures include implementing network-level access controls, monitoring for unauthorized data access patterns, and establishing proper logging mechanisms to detect suspicious activities. From a compliance perspective, organizations should review their data handling practices and consider conducting penetration testing to identify similar vulnerabilities in other plugins or components of their WordPress infrastructure. This vulnerability aligns with CWE-285 which addresses improper authorization issues, and could be categorized under ATT&CK technique T1078 for valid accounts and privilege escalation through unauthorized access to sensitive data resources.