CVE-2025-67938 is a vulnerability classified as 'Improper Control of Filename for Include/Require Statement in PHP Program,' commonly referred to as a Remote File Inclusion (RFI) vulnerability, found in the Mikado-Themes Biagiotti WordPress theme. This vulnerability affects all versions of Biagiotti prior to 3.5.2. The core issue is that the theme improperly validates or sanitizes user-supplied input used in PHP include or require statements, allowing an attacker to specify a remote file to be included and executed by the PHP interpreter. This can lead to remote code execution (RCE), enabling attackers to run arbitrary PHP code on the web server without authentication or user interaction. The CVSS v3.1 base score is 8.1, indicating a high severity, with the vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H. This means the attack can be launched remotely over the network but requires high attack complexity, no privileges, and no user interaction. The impact on confidentiality, integrity, and availability is high, as attackers can fully compromise the affected system. Although no known exploits are currently reported in the wild, the vulnerability's nature and severity make it a significant threat to websites using the affected theme. The vulnerability was publicly disclosed on January 22, 2026, and was reserved on December 15, 2025. No official patches or mitigation links were provided in the source data, but upgrading to version 3.5.2 or later is implied as the fix. The vulnerability is particularly relevant to WordPress sites using the Biagiotti theme, which is popular among European small and medium enterprises for e-commerce and corporate websites.

The impact of CVE-2025-67938 on European organizations can be severe. Organizations using the Mikado-Themes Biagiotti theme on their WordPress sites risk full system compromise through remote code execution. This can lead to data breaches exposing sensitive customer and business information, defacement of websites, disruption of online services, and potential use of compromised servers as launchpads for further attacks. Given the high adoption rate of WordPress in Europe, especially for SMEs and e-commerce platforms, the vulnerability could affect a broad range of sectors including retail, finance, healthcare, and government services. The compromise of web servers can also damage organizational reputation and lead to regulatory penalties under GDPR if personal data is exposed. The requirement for no authentication or user interaction lowers the barrier for attackers, increasing the likelihood of exploitation once a public exploit becomes available. The high attack complexity somewhat mitigates immediate risk but does not eliminate it, especially for skilled attackers or automated scanning tools. The lack of known exploits in the wild currently provides a window for proactive mitigation before widespread attacks occur.

To mitigate CVE-2025-67938, European organizations should immediately upgrade the Mikado-Themes Biagiotti theme to version 3.5.2 or later, where the vulnerability is fixed. If upgrading is not immediately possible, organizations should implement web application firewall (WAF) rules to detect and block suspicious include or require requests containing remote URLs or unexpected parameters. Conduct a thorough audit of all PHP include/require statements in custom code and plugins to ensure proper input validation and sanitization. Disable allow_url_include and allow_url_fopen directives in the PHP configuration to prevent remote file inclusion at the PHP interpreter level. Regularly monitor web server logs for unusual requests that attempt to exploit file inclusion vulnerabilities. Employ intrusion detection systems (IDS) to alert on anomalous web traffic patterns. Educate web administrators and developers about secure coding practices related to file inclusion. Finally, maintain regular backups and incident response plans to recover quickly in case of compromise.