CVE-2025-68066 is a vulnerability classified as Remote File Inclusion (RFI) found in the PenciDesign Soledad WordPress theme, affecting versions up to and including 8.7.0. The root cause is improper validation and control of filenames used in PHP include or require statements. This flaw allows an attacker to manipulate the filename parameter to include arbitrary files from remote or local sources. When exploited, this can lead to execution of malicious PHP code on the server, enabling full site compromise, data theft, or further pivoting within the hosting environment. The vulnerability does not require authentication or user interaction, making it easier for attackers to exploit remotely. Although no public exploits or patches are currently available, the nature of RFI vulnerabilities historically leads to rapid exploitation once disclosed. The affected product, Soledad, is a popular multipurpose WordPress theme used globally, including in Europe. The lack of a CVSS score necessitates a severity assessment based on impact and exploitability factors.

For European organizations, exploitation of CVE-2025-68066 could result in severe consequences including unauthorized access to sensitive data, website defacement, distribution of malware to visitors, and potential disruption of business operations. Websites compromised via this vulnerability may also be blacklisted by search engines or security services, damaging reputation and causing loss of customer trust. Given the widespread use of WordPress and the popularity of the Soledad theme, many SMEs and enterprises across Europe could be exposed. The ability to execute arbitrary code remotely without authentication increases the risk of large-scale automated attacks targeting vulnerable sites. Additionally, compromised sites may serve as launchpads for attacks against other internal systems, amplifying the threat to organizational IT infrastructure.

Organizations should immediately verify if they are using the Soledad theme version 8.7.0 or earlier and plan to upgrade to a patched version once available. Until a patch is released, implement Web Application Firewall (WAF) rules to block suspicious requests attempting to manipulate include parameters or containing remote file URLs. Disable PHP allow_url_include directive if enabled, as this setting facilitates remote file inclusion. Conduct thorough code reviews and remove or sanitize any dynamic include/require statements that accept user input. Monitor web server logs for unusual access patterns indicative of exploitation attempts. Employ intrusion detection systems (IDS) tuned to detect RFI attack signatures. Finally, maintain regular backups and have an incident response plan ready to quickly recover from potential compromises.