CVE-2025-66163 identifies a Missing Authorization vulnerability in the merkulove Masker for Elementor plugin, affecting versions up to and including 1.1.4. This vulnerability arises from improperly configured access control mechanisms that fail to enforce correct authorization checks on certain plugin functionalities. As a result, an attacker with low privileges (PR:L) can remotely exploit this flaw without requiring user interaction (UI:N) to gain unauthorized access to sensitive data or perform unauthorized actions within the plugin's scope. The vulnerability impacts confidentiality and integrity (C:L/I:L) but does not affect availability (A:N). The attack vector is network-based (AV:N), meaning exploitation can occur remotely over the internet. Although no public exploits have been reported yet, the vulnerability's presence in a widely used WordPress plugin component for Elementor—a popular page builder—raises concerns about potential misuse. The plugin is commonly deployed in websites that rely on Elementor for design and interactive content, making the vulnerability relevant for web administrators and security teams managing WordPress environments. The CVSS 3.1 base score of 5.4 reflects a medium severity level, balancing the ease of exploitation with the limited scope of impact. The lack of a patch link indicates that a fix may still be pending or not yet publicly released, emphasizing the need for vigilance and interim mitigation measures.

For European organizations, the impact of CVE-2025-66163 centers on unauthorized access to or modification of data managed by the Masker for Elementor plugin. This could lead to leakage of sensitive information or unauthorized content changes on websites, potentially damaging brand reputation and customer trust. Since the vulnerability does not affect availability, denial-of-service risks are minimal. However, the confidentiality and integrity breaches could facilitate further attacks, such as phishing or data exfiltration. Organizations heavily reliant on WordPress and Elementor for their web presence, including e-commerce, media, and service providers, face increased risk. The medium severity suggests that while the threat is not critical, it warrants prompt attention to prevent escalation. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the potential for future exploitation. Compliance with data protection regulations like GDPR may also be impacted if unauthorized data access occurs, leading to legal and financial consequences.

1. Monitor official merkulove and Elementor channels for patch releases addressing CVE-2025-66163 and apply updates promptly once available. 2. In the interim, restrict access to the Masker for Elementor plugin functionalities by implementing stricter access control policies at the web server or application level, limiting plugin usage to trusted administrators only. 3. Conduct a thorough audit of user roles and permissions within WordPress to ensure that only necessary users have low-level privileges that could be exploited. 4. Employ Web Application Firewalls (WAFs) with custom rules to detect and block suspicious requests targeting the plugin endpoints. 5. Regularly review website logs for unusual access patterns or unauthorized changes related to the plugin. 6. Educate site administrators about the vulnerability and encourage immediate reporting of anomalies. 7. Consider temporarily disabling the Masker for Elementor plugin if it is not critical to website functionality until a patch is applied. 8. Implement network segmentation and least privilege principles to limit the impact scope if exploitation occurs.