CVE-2025-14267 identifies a vulnerability categorized under CWE-212, which pertains to the improper removal of sensitive information before storage or transfer. The affected product is M-Files Server by M-Files Corporation, specifically versions prior to 25.12.15491.7. The vulnerability arises because the server software fails to completely sanitize or remove sensitive data before transferring it, potentially exposing confidential information to unauthorized parties. The CVSS 4.0 base score is 5.6 (medium), reflecting network attack vector (AV:N), high attack complexity (AC:H), required privileges at high level (PR:H), and user interaction (UI:A). The vulnerability impacts confidentiality with high scope impact (VC:H), but does not affect integrity or availability. No public exploits have been reported yet, indicating limited exploitation in the wild. The flaw could be exploited by an attacker with elevated privileges and the ability to induce user interaction, possibly through crafted requests or workflows that trigger data transfer operations. The incomplete removal of sensitive information could lead to leakage of confidential documents or metadata managed by M-Files Server, which is widely used for enterprise document management and collaboration. This vulnerability highlights the importance of secure data handling and sanitization in document management systems to prevent inadvertent data exposure during routine operations.

For European organizations, the primary impact is the potential leakage of sensitive or confidential information managed within M-Files Server environments. This can lead to breaches of data privacy regulations such as GDPR, resulting in legal and financial penalties. The confidentiality breach could expose intellectual property, personal data, or business-critical documents. Since M-Files Server is often used in sectors like finance, healthcare, legal, and government, the exposure risk is significant in these contexts. The requirement for high privileges and user interaction reduces the likelihood of widespread exploitation but does not eliminate insider threat risks or targeted attacks. Data leakage incidents could undermine trust, cause reputational damage, and disrupt compliance efforts. The vulnerability does not affect system integrity or availability, so operational disruption is unlikely. However, the exposure of sensitive data alone can have severe consequences, especially for organizations handling regulated or classified information.

1. Upgrade M-Files Server to version 25.12.15491.7 or later as soon as the patch is released by the vendor to ensure the vulnerability is remediated. 2. Conduct a thorough audit of data transfer and storage processes within M-Files Server to identify any residual sensitive information that may be improperly handled. 3. Implement strict access controls and privilege management to limit the number of users with high-level privileges, reducing the risk of exploitation. 4. Educate users about the risk of social engineering or phishing that could trigger user interaction required for exploitation. 5. Monitor logs and network traffic for unusual data transfer patterns that could indicate attempts to exploit this vulnerability. 6. Employ data loss prevention (DLP) tools integrated with M-Files to detect and block unauthorized data exfiltration. 7. Review and enhance internal policies regarding data sanitization and secure handling of sensitive information within document management workflows. 8. Coordinate with incident response teams to prepare for potential data leakage incidents and ensure rapid containment and remediation.