CVE-2025-66083 is a security vulnerability identified in the magepeopleteam WpEvently WordPress plugin, specifically affecting versions up to and including 5.0.4. The vulnerability arises from missing authorization checks within the plugin, which means that certain actions or data access points do not properly verify whether the requesting user has the necessary permissions. This misconfiguration of access control security levels can allow an attacker to perform unauthorized operations, potentially including viewing, modifying, or deleting event-related information managed by the plugin. Since WpEvently is designed to manage events on WordPress sites, exploitation could lead to manipulation of event data, disruption of event management workflows, or unauthorized disclosure of sensitive event details. The vulnerability does not require prior authentication or user interaction, increasing its risk profile. As of the publication date, no public exploits have been reported, and no official patch links are available, indicating that mitigation options may currently be limited. The absence of a CVSS score necessitates an assessment based on the potential impact and exploitability. The vulnerability’s root cause is an incorrectly configured access control mechanism, a common and critical security flaw that can undermine the integrity and confidentiality of affected systems. Organizations using this plugin should consider the risk of unauthorized access and take immediate steps to audit and restrict plugin usage.

For European organizations, the impact of CVE-2025-66083 could be significant, especially for those relying on WordPress sites for event management and public engagement. Unauthorized access to event data could lead to data breaches involving personal information of attendees, manipulation or cancellation of events, and reputational damage. This could disrupt business operations, particularly for companies in sectors such as event planning, education, cultural institutions, and public services. Additionally, attackers could leverage the vulnerability as a foothold for further attacks within the network, potentially escalating privileges or deploying malware. The lack of authentication requirements lowers the barrier for exploitation, increasing the risk of widespread abuse. Organizations may face compliance issues under GDPR if personal data is exposed due to this vulnerability. The absence of known exploits provides a window for proactive defense, but the risk remains elevated until patches or mitigations are applied.

1. Immediately identify all WordPress installations using the WpEvently plugin and determine the version in use. 2. Restrict access to the WordPress admin interface and the plugin’s functionalities to trusted administrators only, using IP whitelisting or VPN access where possible. 3. Monitor logs for unusual activity related to event management functions or unauthorized access attempts. 4. Disable or uninstall the WpEvently plugin temporarily if a patch is not yet available and event management functionality can be suspended. 5. Follow magepeopleteam’s official channels for patch releases and apply updates promptly once available. 6. Implement Web Application Firewall (WAF) rules to detect and block suspicious requests targeting the plugin’s endpoints. 7. Conduct a thorough review of user roles and permissions within WordPress to ensure least privilege principles are enforced. 8. Educate site administrators about the risks and signs of exploitation related to this vulnerability. 9. Consider additional monitoring for data exfiltration or integrity violations related to event data. 10. Prepare incident response plans to quickly address potential exploitation scenarios.