CVE-2025-60197 is a vulnerability classified as 'Improper Control of Filename for Include/Require Statement in PHP Program,' commonly known as a PHP Remote File Inclusion (RFI) flaw, found in the owenr88 Simple Contact Forms plugin up to version 1.6.4. The vulnerability arises because the plugin fails to properly validate or sanitize user-supplied input used in PHP include or require statements. This flaw allows an attacker to specify a remote file URL that the PHP interpreter will include and execute within the context of the vulnerable web application. Exploiting this vulnerability requires no authentication or user interaction and can be performed remotely over the network. The CVSS v3.1 base score is 8.2 (high severity), reflecting the ease of exploitation (network vector, low attack complexity) and the significant confidentiality impact, as attackers can execute arbitrary PHP code, potentially leading to data leakage or further compromise. While integrity impact is limited and availability is not directly affected, the ability to execute arbitrary code can facilitate privilege escalation, data exfiltration, or pivoting attacks. No known public exploits have been reported yet, but the vulnerability is publicly disclosed and should be considered critical to patch. The affected product, Simple Contact Forms, is a PHP-based plugin commonly used in web environments to manage contact forms, often integrated with content management systems. The vulnerability is particularly dangerous because PHP Remote File Inclusion can lead to full system compromise if exploited successfully.

For European organizations, the impact of CVE-2025-60197 can be severe, especially for those relying on PHP-based web applications and plugins such as Simple Contact Forms. Successful exploitation allows attackers to execute arbitrary code remotely, potentially leading to unauthorized access to sensitive data, including personal data protected under GDPR. This can result in data breaches, regulatory fines, reputational damage, and operational disruption. Since the vulnerability does not require authentication or user interaction, it can be exploited en masse by automated scanning and exploitation tools, increasing the risk of widespread compromise. Organizations running vulnerable versions of the plugin on public-facing websites are at particular risk. The confidentiality impact is high, as attackers can read sensitive files or inject malicious payloads. Integrity impact is moderate, as attackers can modify data or application behavior. Availability is less affected but could be indirectly impacted if attackers deploy ransomware or destructive payloads after initial compromise. The lack of known exploits in the wild currently reduces immediate risk but does not diminish the urgency of mitigation.

1. Immediate patching: Monitor the vendor or security advisories for an official patch or update for Simple Contact Forms and apply it as soon as it becomes available. 2. Input validation: Implement strict server-side validation and sanitization of all user inputs, especially those used in include or require statements, to prevent injection of malicious file paths or URLs. 3. Disable remote file inclusion: Configure PHP settings to disable allow_url_include and allow_url_fopen directives to prevent inclusion of remote files. 4. Web application firewall (WAF): Deploy and configure a WAF with rules to detect and block attempts to exploit RFI vulnerabilities. 5. Least privilege: Run web server and PHP processes with minimal privileges to limit the impact of a successful exploit. 6. Code review: Audit custom code and third-party plugins for similar insecure include patterns. 7. Network segmentation: Isolate web servers from critical internal systems to reduce lateral movement risk. 8. Monitoring and logging: Enable detailed logging and monitor for suspicious file inclusion attempts or unusual PHP execution patterns. 9. Backup: Maintain regular, secure backups to enable recovery in case of compromise. 10. Incident response: Prepare and test incident response plans for web application compromises.