CVE-2025-68543 is a vulnerability classified as Improper Control of Filename for Include/Require Statement in the PHP program thembay Diza, specifically versions up to and including 1.3.15. This vulnerability is a form of Remote File Inclusion (RFI), where the application fails to properly validate or sanitize user-supplied input used in PHP include or require statements. As a result, an attacker can manipulate the filename parameter to include malicious remote files, which the PHP interpreter then executes. This can lead to remote code execution, allowing attackers to run arbitrary code on the server hosting the vulnerable application. The vulnerability is particularly dangerous because it can be exploited remotely without authentication, often via crafted HTTP requests. Although no known exploits have been reported in the wild yet, the lack of patches and the nature of the vulnerability make it a critical risk. The vulnerability affects the thembay Diza product, a PHP-based software solution, potentially used in web applications or content management systems. The absence of a CVSS score indicates that the vulnerability is newly published and not yet fully assessed, but the technical nature suggests a high severity. The vulnerability was reserved in December 2025 and published in February 2026, indicating recent discovery. Organizations using Diza should prioritize code review, input validation, and monitor for suspicious file inclusion attempts.

The impact of CVE-2025-68543 is significant for organizations running the thembay Diza PHP application. Successful exploitation can lead to remote code execution, allowing attackers to execute arbitrary commands on the affected server. This can result in full system compromise, data theft, defacement, or use of the server as a pivot point for further attacks within the network. Confidentiality, integrity, and availability of the affected systems are at risk. Additionally, attackers could deploy malware, ransomware, or backdoors, leading to long-term persistence. The vulnerability can disrupt business operations, damage reputation, and incur regulatory penalties if sensitive data is exposed. Since no patches are currently available, organizations remain exposed until mitigations are applied. The scope includes all installations of thembay Diza up to version 1.3.15, potentially affecting numerous websites and applications globally. The ease of exploitation without authentication and no user interaction needed increases the threat level.

To mitigate CVE-2025-68543, organizations should immediately audit all instances of thembay Diza and identify affected versions. Until an official patch is released, implement strict input validation and sanitization on all parameters that influence file inclusion paths. Disable remote file inclusion in PHP configurations by setting 'allow_url_include' to 'Off' and 'allow_url_fopen' to 'Off' if not required. Employ web application firewalls (WAFs) to detect and block suspicious requests attempting to exploit file inclusion vulnerabilities. Restrict file permissions and isolate the web server environment to limit the impact of potential exploitation. Monitor logs for unusual file inclusion attempts or unexpected remote requests. Engage with the vendor or community for updates and patches, and plan for rapid deployment once available. Consider code refactoring to avoid dynamic file inclusion based on user input. Regularly back up critical data and maintain incident response readiness to quickly address any compromise.