CVE-2025-10684 identifies a security vulnerability in the Construction Light WordPress theme prior to version 1.6.8. The issue arises from improper authentication (CWE-287) and lack of Cross-Site Request Forgery (CSRF) protection (CWE-352) in an AJAX action used to activate certain theme features. Specifically, the theme does not verify whether the user initiating the AJAX request has the appropriate authorization, nor does it implement CSRF tokens to prevent unauthorized requests. As a result, any authenticated user, including those with minimal privileges such as subscribers, can trigger the activation of arbitrary functionalities within the theme. This could lead to unauthorized changes in the website's behavior or configuration, potentially enabling privilege escalation or other malicious activities. The vulnerability was reserved in September 2025 and published in December 2025, with no CVSS score assigned yet and no known exploits in the wild. The lack of a patch link suggests that a fix may still be pending or in development. The vulnerability affects all versions before 1.6.8, indicating that users running outdated versions are at risk. The AJAX activation mechanism's failure to enforce proper authorization and CSRF protections is the core technical flaw, making exploitation straightforward for any authenticated user without requiring additional user interaction or complex attack vectors.

For European organizations, the impact of CVE-2025-10684 can be significant, especially for those relying on WordPress sites using the Construction Light theme. Unauthorized activation of theme features by low-privileged users can lead to unauthorized configuration changes, potential privilege escalation, or the enabling of hidden or malicious functionalities. This undermines the confidentiality and integrity of the website and could disrupt availability if malicious features degrade site performance or stability. Organizations in sectors such as e-commerce, government, and media, which often use WordPress for public-facing sites, may face reputational damage, data breaches, or compliance violations if attackers exploit this vulnerability. The ease of exploitation by any authenticated user, including subscribers, lowers the barrier for insider threats or compromised accounts to cause damage. Although no exploits are currently known, the vulnerability's nature suggests a high likelihood of exploitation once a public exploit becomes available. This risk is compounded in environments where user account management is lax or where subscriber roles are widely assigned.

To mitigate CVE-2025-10684, European organizations should prioritize upgrading the Construction Light theme to version 1.6.8 or later as soon as a patch is released. Until then, administrators should restrict user roles and permissions to minimize the number of authenticated users with subscriber or higher access. Implementing Web Application Firewall (WAF) rules to monitor and block unauthorized AJAX requests targeting the theme's activation endpoints can provide interim protection. Additionally, site owners should audit their WordPress user base to remove or limit unnecessary accounts and enforce strong authentication mechanisms such as multi-factor authentication (MFA) to reduce the risk of account compromise. Developers and administrators should also review custom AJAX handlers to ensure proper authorization checks and CSRF token validation are in place. Regular security scanning and monitoring for unusual activation activities or configuration changes can help detect exploitation attempts early. Finally, educating site administrators about the risks of outdated themes and the importance of timely updates is critical to maintaining security.