CVE-2025-53432 is a vulnerability classified as Improper Control of Filename for Include/Require Statement in PHP programs, specifically affecting the AncoraThemes Echo WordPress theme versions up to 1.15.0. This vulnerability allows an attacker to perform Remote File Inclusion (RFI) by manipulating the filename parameter used in PHP's include or require statements without proper validation or sanitization. RFI vulnerabilities enable attackers to include malicious remote files, which the PHP interpreter executes, potentially leading to remote code execution on the affected server. This can compromise the confidentiality, integrity, and availability of the web application and underlying system. The vulnerability does not require authentication or user interaction, increasing its risk profile. Although no public exploits are currently known, the nature of RFI vulnerabilities makes them attractive targets for attackers aiming to deploy web shells, steal sensitive data, or use the compromised server as a foothold for further attacks. The vulnerability affects the Echo theme, a product by AncoraThemes, widely used in WordPress installations for website design and functionality. The lack of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical details and typical impact of RFI vulnerabilities provide a clear indication of its severity.

European organizations using the AncoraThemes Echo theme on their WordPress sites are at risk of remote code execution attacks, which can lead to full site compromise, data theft, defacement, or use of the compromised server as a launchpad for further attacks within the network. This is particularly critical for businesses relying on their websites for customer interaction, e-commerce, or hosting sensitive information. The vulnerability could disrupt service availability, damage organizational reputation, and result in regulatory non-compliance under GDPR if personal data is exposed. Since WordPress is widely used across Europe, especially in small and medium enterprises, the attack surface is significant. The ease of exploitation without authentication or user interaction means attackers can automate scanning and exploitation, increasing the likelihood of widespread impact. Additionally, compromised websites may be used to distribute malware or phishing content, further amplifying the threat to European internet users and organizations.

Organizations should immediately verify if they are using the AncoraThemes Echo theme version 1.15.0 or earlier. Since no official patch links are currently available, administrators should monitor AncoraThemes and trusted vulnerability databases for updates or patches. In the interim, manual mitigation includes reviewing and sanitizing all inputs that influence PHP include or require statements within the theme's codebase to prevent inclusion of remote or unauthorized files. Employing Web Application Firewalls (WAFs) with rules to block suspicious file inclusion attempts can reduce exposure. Restricting PHP configurations such as disabling allow_url_include and allow_url_fopen can mitigate remote file inclusion risks. Regularly auditing WordPress themes and plugins for vulnerabilities and minimizing the use of unnecessary or outdated components is recommended. Additionally, maintaining regular backups and implementing intrusion detection systems can help in rapid recovery and detection of exploitation attempts.