CVE-2025-66146 identifies a Missing Authorization vulnerability (CWE-862) in the merkulove Logger for Elementor plugin, a WordPress extension used for logging activities within Elementor-based websites. The vulnerability arises from improperly configured access control mechanisms, allowing users with limited privileges (PR:L) to execute actions that should require higher authorization. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L) indicates that the attack can be performed remotely over the network with low attack complexity, requiring only low privileges and no user interaction. The impact affects integrity and availability but not confidentiality, meaning attackers could alter or disrupt logging data or plugin functionality without accessing sensitive information. The affected versions include all releases up to 1.0.9, with no patches currently available. Although no exploits have been observed in the wild, the vulnerability poses a risk to organizations relying on this plugin for monitoring and logging, as unauthorized changes could undermine audit trails or cause denial of service. The vulnerability was reserved in late November 2025 and published at the end of December 2025, indicating recent discovery and disclosure. Given the plugin's role in logging, exploitation could facilitate further attacks or cover tracks by tampering with logs. The lack of authentication bypass or user interaction requirements increases the likelihood of exploitation by insiders or compromised accounts with limited privileges.

For European organizations, this vulnerability could undermine the integrity and availability of logging data critical for security monitoring and incident response. Attackers exploiting this flaw might alter logs to hide malicious activities or disrupt logging services, impairing forensic investigations and compliance with regulatory requirements such as GDPR. Organizations relying on the merkulove Logger for Elementor in their WordPress environments may experience service disruptions or data integrity issues, potentially affecting website reliability and trustworthiness. The impact is particularly significant for sectors with strict audit and compliance mandates, including finance, healthcare, and government agencies. Additionally, compromised logging could facilitate further attacks by masking unauthorized access or data exfiltration attempts. The medium severity rating suggests a moderate risk, but the ease of exploitation and the plugin's widespread use in European WordPress sites elevate the threat level. Without available patches, organizations face increased exposure until mitigations are implemented.

1. Monitor official merkulove and Elementor channels for security updates and apply patches immediately upon release. 2. Restrict access to the Logger for Elementor plugin settings and functionalities to only trusted administrators with the highest necessary privileges. 3. Implement strict role-based access controls (RBAC) within WordPress to limit users' capabilities related to plugin management and logging. 4. Regularly audit user accounts and permissions to detect and remove unnecessary or outdated privileges. 5. Employ Web Application Firewalls (WAF) with custom rules to detect and block suspicious requests targeting the plugin endpoints. 6. Monitor logs for unusual activities or modifications that could indicate exploitation attempts. 7. Consider temporarily disabling the Logger for Elementor plugin if logging is not critical or if compensating controls can be established until a patch is available. 8. Educate administrators about the risks of privilege misuse and the importance of secure plugin management. 9. Use security plugins that can detect unauthorized changes or anomalies in WordPress environments. 10. Maintain regular backups of website data and logs to enable recovery in case of tampering or disruption.