CVE-2025-66139 is a vulnerability identified in the merkulove Audier For Elementor plugin, specifically versions up to and including 1.0.9. The root cause is a missing authorization mechanism, which means that certain actions within the plugin can be performed without proper access control verification. This leads to an Incorrectly Configured Access Control Security Level, allowing an attacker with low privileges (PR:L) to exploit the vulnerability remotely (AV:N) without requiring user interaction (UI:N). The vulnerability impacts the integrity and availability of the system, as unauthorized users can potentially modify plugin data or disrupt its operation. 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 surface is network-based with low attack complexity, requiring some privileges but no user interaction, and the scope remains unchanged. No confidentiality impact is noted, but integrity and availability impacts are present. No patches or known exploits are currently reported, but the vulnerability is publicly disclosed and should be addressed promptly. The plugin is used within WordPress environments, which are widely deployed across many organizations, making this a relevant threat to web infrastructure relying on this plugin for content or media management.

For European organizations, this vulnerability poses a moderate risk primarily to the integrity and availability of websites or web applications using the merkulove Audier For Elementor plugin. Attackers could exploit the missing authorization to alter plugin configurations, inject malicious content, or disrupt service availability, potentially leading to website defacement, loss of functionality, or downtime. This can affect business continuity, brand reputation, and user trust. Since the vulnerability does not impact confidentiality, direct data breaches are less likely, but the indirect effects of service disruption or unauthorized changes can still be significant. Organizations relying on this plugin for critical customer-facing or internal portals may experience operational impacts. The risk is heightened in sectors with strict uptime requirements or regulatory compliance obligations, such as finance, healthcare, and e-commerce. Additionally, the ease of exploitation over the network without user interaction increases the likelihood of automated or targeted attacks if the vulnerability is weaponized.

1. Monitor official merkulove channels and security advisories for patches addressing CVE-2025-66139 and apply updates promptly once available. 2. Until patches are released, restrict access to the plugin’s administrative interfaces using network-level controls such as IP whitelisting or VPN access to limit exposure. 3. Review and harden WordPress user roles and permissions to ensure that only trusted users have the necessary privileges to interact with the plugin. 4. Implement web application firewalls (WAF) with custom rules to detect and block suspicious requests targeting the plugin’s endpoints. 5. Conduct regular security audits and penetration testing focusing on access control mechanisms within WordPress plugins. 6. Enable detailed logging and monitoring of plugin-related activities to detect potential exploitation attempts early. 7. Educate site administrators about the risks of privilege escalation and the importance of timely updates. 8. Consider temporary deactivation of the plugin if it is not critical to operations until a patch is available.