CVE-2025-62066 is a Remote File Inclusion (RFI) vulnerability identified in the Revolution product by fuelthemes, affecting versions prior to 2.5.8. The vulnerability stems from improper control over the filename parameter used in PHP include or require statements. This flaw allows an attacker with low privileges and requiring user interaction to manipulate the filename parameter to include remote files, potentially leading to arbitrary code execution on the server. The vulnerability is categorized under PHP Remote File Inclusion, a critical web application security issue that can lead to full system compromise. The CVSS 3.1 score of 7.4 (AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H) indicates that the attack vector is adjacent network (e.g., internal network or VPN), requires low attack complexity, low privileges, and user interaction, but can result in high confidentiality, integrity, and availability impacts. No public exploits are known at this time, but the vulnerability is published and should be treated as a serious risk. The flaw affects the Revolution theme used in PHP-based web applications, which is commonly deployed in content management systems and e-commerce platforms. The improper validation or sanitization of the filename parameter in include/require statements enables attackers to load malicious remote code, potentially leading to server takeover, data theft, or service disruption.

For European organizations, exploitation of CVE-2025-62066 could lead to severe consequences including unauthorized access to sensitive data, defacement or disruption of web services, and full compromise of affected servers hosting the Revolution theme. This is particularly critical for organizations relying on PHP-based CMS platforms that integrate the Revolution theme, such as digital agencies, e-commerce businesses, and media companies. The vulnerability’s requirement for low privileges and user interaction means insider threats or targeted phishing campaigns could facilitate exploitation. The high impact on confidentiality, integrity, and availability could result in data breaches subject to GDPR penalties, reputational damage, and operational downtime. Additionally, compromised servers could be leveraged for further attacks within European networks, amplifying the threat. The absence of known exploits currently provides a window for proactive mitigation, but the risk remains high given the nature of RFI vulnerabilities.

European organizations should immediately identify all instances of the Revolution theme in their environments and verify the version in use. Until an official patch is released, apply temporary mitigations such as disabling remote file inclusion in PHP configurations (e.g., setting allow_url_include=Off), enforcing strict input validation and sanitization on all user-supplied parameters, and restricting access to the vulnerable include/require functionality via web application firewalls (WAFs) or application-level access controls. Limit user privileges to the minimum necessary and monitor logs for suspicious include/require requests or unusual file access patterns. Once fuelthemes releases a patch for version 2.5.8 or later, prioritize immediate update and test for successful remediation. Additionally, conduct security awareness training to reduce the risk of social engineering attacks that could trigger user interaction exploitation. Employ network segmentation to isolate web servers running vulnerable software and implement intrusion detection systems to detect potential exploitation attempts.