CVE-2025-64216 is a Local File Inclusion (LFI) vulnerability found in the ThemeSphere SmartMag WordPress theme, specifically affecting versions up to and including 10.3.0. The vulnerability arises from improper control over the filename parameter used in PHP include or require statements. This flaw allows an attacker to manipulate the input to include arbitrary files from the local filesystem. Exploiting this vulnerability can lead to disclosure of sensitive files such as configuration files, password files, or other critical data stored on the server. In some cases, LFI can be leveraged to achieve remote code execution if attackers can include files containing malicious code or upload files to the server. Although no public exploits have been reported yet, the nature of the vulnerability and the widespread use of WordPress themes like SmartMag make it a significant risk. The vulnerability was published on October 29, 2025, but no CVSS score or patches have been released at the time of this report. The lack of patch links indicates that users must monitor vendor communications closely. The vulnerability does not require authentication or user interaction, increasing its exploitability. The issue is categorized under improper input validation and insecure file inclusion, common in PHP web applications that dynamically include files based on user input without proper sanitization or whitelisting.

For European organizations, especially those operating websites or online publications using the SmartMag theme, this vulnerability poses a serious risk. Successful exploitation can lead to unauthorized access to sensitive data, including credentials, internal documents, or configuration files, compromising confidentiality. Additionally, attackers might execute arbitrary code, leading to full system compromise, data manipulation, or service disruption, affecting integrity and availability. This can result in reputational damage, regulatory penalties under GDPR for data breaches, and operational downtime. Media companies, news portals, and content-heavy websites using SmartMag are particularly vulnerable. The impact is magnified in sectors where data privacy and uptime are critical, such as finance, healthcare, and government. Given the lack of public exploits, the threat is currently theoretical but could escalate rapidly once exploit code becomes available. The ease of exploitation without authentication increases the risk of automated scanning and mass exploitation campaigns targeting European websites.

Organizations should immediately inventory their WordPress installations to identify if SmartMag theme versions up to 10.3.0 are in use. Until an official patch is released, implement the following mitigations: 1) Restrict file inclusion paths by configuring PHP open_basedir to limit accessible directories. 2) Employ Web Application Firewalls (WAFs) with rules to detect and block suspicious include/require parameter manipulations. 3) Disable or restrict dynamic file inclusion features in the theme if possible. 4) Harden server permissions to prevent unauthorized file access. 5) Monitor web server logs for unusual requests targeting include parameters. 6) Regularly check for vendor updates and apply patches promptly once available. 7) Conduct code reviews or use static analysis tools to identify and remediate insecure file inclusion patterns in customizations. 8) Educate site administrators on the risks of installing untrusted plugins or themes. These steps go beyond generic advice by focusing on containment and proactive detection until a vendor patch is deployed.