CVE-2025-13062 is a vulnerability classified under CWE-434 (Unrestricted Upload of File with Dangerous Type) affecting the Supreme Modules Lite plugin for WordPress, which integrates with Divi Theme, Extra Theme, and Divi Builder. The root cause is insufficient validation of uploaded file types, specifically the failure to properly detect and block files with double extensions that include JSON files. Attackers with author-level or higher privileges can exploit this by uploading malicious files disguised as JSON, bypassing sanitization checks. This arbitrary file upload can lead to remote code execution (RCE) on the web server hosting the WordPress site, allowing attackers to execute commands, escalate privileges, or compromise the entire system. The vulnerability affects all versions up to 2.5.62 and does not require user interaction beyond authentication at the author level. The CVSS v3.1 base score is 8.8, reflecting high impact on confidentiality, integrity, and availability, with network attack vector, low attack complexity, and no user interaction required. No public exploits have been reported yet, but the vulnerability is critical due to the widespread use of Divi-based themes and builders in WordPress sites globally.

The exploitation of CVE-2025-13062 can have severe consequences for organizations running WordPress sites with the affected Supreme Modules Lite plugin. Successful attacks can lead to remote code execution, enabling attackers to take full control of the web server, steal sensitive data, deface websites, deploy malware, or use the compromised server as a pivot point for further attacks within the network. This threatens the confidentiality, integrity, and availability of the affected systems. Given the popularity of Divi themes and builders among businesses, bloggers, and e-commerce platforms, the potential impact spans from data breaches and loss of customer trust to operational disruptions and financial losses. The requirement for only author-level access lowers the barrier for exploitation compared to administrator-only vulnerabilities, increasing risk especially in environments with multiple content contributors or less stringent access controls.

To mitigate CVE-2025-13062, organizations should immediately update the Supreme Modules Lite plugin to a patched version once available. Until a patch is released, administrators should restrict author-level privileges to trusted users only and consider temporarily disabling file upload features within the plugin if feasible. Implementing web application firewall (WAF) rules to detect and block suspicious file uploads, especially those with double extensions or disguised JSON files, can provide additional protection. Regularly audit user roles and permissions to minimize the number of users with author or higher privileges. Employ monitoring and alerting for unusual file upload activity and web server behavior indicative of exploitation attempts. Additionally, hardening the server environment by disabling execution permissions in upload directories and isolating WordPress instances can reduce the impact of a successful exploit.