CVE-2025-67528 is a vulnerability in the thembay Urna PHP application, specifically versions up to and including 2.5.12. The issue arises from improper control over the filename parameter used in PHP include or require statements, which leads to a Local File Inclusion (LFI) vulnerability. Unlike Remote File Inclusion (RFI), this vulnerability allows an attacker to include files that are already present on the local server rather than remotely hosted files. This can be exploited by an attacker who has some form of local access or can manipulate input parameters to include sensitive files such as configuration files, logs, or other PHP scripts. The vulnerability has a CVSS 3.1 base score of 5.1, indicating medium severity, with the vector AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L. This means the attack requires local access (AV:L), low attack complexity (AC:L), no privileges (PR:N), no user interaction (UI:N), unchanged scope (S:U), limited confidentiality impact (C:L), no integrity impact (I:N), and limited availability impact (A:L). The vulnerability could lead to partial denial of service or information disclosure but does not allow code execution or full system compromise. No known exploits have been reported in the wild, and no patches or fixes are currently linked, indicating the need for vendor action. The vulnerability is classified under improper input validation related to file inclusion in PHP applications, a common web application security issue. Organizations using the Urna product should be aware of this vulnerability and monitor for updates or patches from the vendor thembay.

For European organizations, the impact of CVE-2025-67528 is primarily related to potential information disclosure and partial denial of service. Since the vulnerability allows local file inclusion, attackers with local access or the ability to influence local input parameters could read sensitive files, potentially exposing configuration details, credentials, or other sensitive data. The limited confidentiality impact reduces the risk of full data breaches, but exposure of configuration files could facilitate further attacks. The availability impact is low but could disrupt services if critical files are included improperly. The vulnerability does not allow remote exploitation without local access, limiting its impact on large-scale remote attacks. However, organizations with multi-tenant environments, shared hosting, or insufficient access controls could be at higher risk. European organizations relying on PHP-based CMS or e-commerce platforms that integrate Urna might face operational disruptions or data exposure if exploited. Compliance with GDPR requires protecting personal data, so any information disclosure could have regulatory consequences. The lack of known exploits reduces immediate risk but also means organizations should proactively address the vulnerability before exploitation occurs.

1. Restrict file inclusion paths by implementing whitelisting of allowed files or directories in the PHP include/require statements to prevent arbitrary file inclusion. 2. Apply principle of least privilege to the web server and application file system permissions to limit access to sensitive files. 3. Monitor and log file inclusion attempts and unusual local file access patterns to detect potential exploitation attempts. 4. Isolate the Urna application environment to reduce the risk of local access by unauthorized users, including using containerization or sandboxing techniques. 5. Regularly update the Urna application and PHP environment once patches or security updates are released by the vendor thembay. 6. Conduct code reviews and security testing focusing on input validation and file inclusion mechanisms within the application. 7. Implement Web Application Firewalls (WAF) with rules to detect and block suspicious file inclusion attempts if applicable. 8. Educate developers and administrators about secure coding practices related to file inclusion vulnerabilities. 9. If immediate patching is not possible, consider disabling or restricting features that allow user-controlled input to file inclusion functions. 10. Perform regular vulnerability scans and penetration tests to identify and remediate similar issues proactively.