CVE-2025-68544 is a Remote File Inclusion (RFI) vulnerability classified under CWE-98, found in Thembay's Diza PHP application up to version 1.3.15. The vulnerability arises from improper control over the filename parameter used in PHP's include or require statements, allowing an attacker to specify a remote file to be included and executed by the server. This can lead to arbitrary code execution, enabling attackers to compromise the confidentiality, integrity, and availability of the affected system. The vulnerability requires network access (AV:N), has high attack complexity (AC:H), requires low privileges (PR:L), and does not require user interaction (UI:N). The scope is unchanged (S:U), but the impact on confidentiality, integrity, and availability is high (C:H/I:H/A:H), resulting in a CVSS 3.1 base score of 7.5. Although no known exploits are reported in the wild, the vulnerability is critical due to the potential for remote code execution and full system compromise. The issue stems from insufficient validation or sanitization of user-supplied input controlling the file path in PHP include/require statements, a common vector for RFI attacks. Attackers can exploit this to include malicious scripts hosted remotely, leading to server takeover, data theft, or service disruption. The vulnerability affects all deployments of Diza up to version 1.3.15, and no official patches or fixes are currently linked, emphasizing the need for immediate mitigation.

For European organizations, the impact of CVE-2025-68544 is significant, especially for those relying on Thembay's Diza for e-commerce or content management solutions. Successful exploitation could lead to remote code execution, allowing attackers to steal sensitive customer data, modify or delete critical business information, disrupt services, or use compromised servers as a foothold for further attacks within the network. This could result in financial losses, reputational damage, and regulatory penalties under GDPR due to data breaches. The high attack complexity somewhat limits exploitation to skilled attackers, but the low privilege requirement and lack of user interaction make it accessible once network access is obtained. The vulnerability could also be leveraged in supply chain attacks if Diza is integrated into larger platforms. Given the widespread use of PHP-based applications in Europe, the threat extends to any organization using vulnerable versions without mitigations. The absence of known exploits currently provides a window for proactive defense, but the risk of future exploitation remains high.

1. Immediately audit all instances of Thembay Diza to identify affected versions (up to 1.3.15) and prioritize remediation. 2. If official patches become available, apply them promptly. 3. In the absence of patches, implement strict input validation and sanitization on all parameters controlling file inclusion paths to prevent injection of remote URLs or arbitrary file paths. 4. Disable PHP's allow_url_include directive in the php.ini configuration to prevent inclusion of remote files. 5. Employ web application firewalls (WAFs) with rules targeting RFI attack patterns to detect and block malicious requests. 6. Restrict file inclusion to a whitelist of trusted directories using PHP's open_basedir directive. 7. Conduct regular code reviews and security testing focusing on include/require statements and user input handling. 8. Monitor logs for suspicious activity related to file inclusion attempts and anomalous PHP execution. 9. Educate developers and administrators about secure coding practices regarding file inclusion. 10. Prepare incident response plans to quickly contain and remediate any exploitation attempts.