CVE-2025-53561 is a path traversal vulnerability identified in the miniOrange product named 'Prevent files / folders access', affecting versions up to 2.6.0. Path traversal (CWE-35) vulnerabilities occur when an application does not properly sanitize user-supplied input used to access files or directories, allowing attackers to manipulate file paths and access files outside the intended directory scope. In this case, the vulnerability enables an attacker with at least low-level privileges (PR:L) and network access (AV:N) to craft requests that traverse directories on the server hosting the miniOrange Prevent files / folders access component. The vulnerability does not require user interaction (UI:N) and impacts confidentiality (C:H) but not integrity or availability. The CVSS 3.1 base score is 6.5, categorized as medium severity. This indicates that an attacker can potentially read sensitive files on the server, which could include configuration files, credentials, or other sensitive data, without needing to authenticate as a high-privilege user. The vulnerability is exploitable remotely over the network with low attack complexity (AC:L). No known exploits in the wild have been reported yet, and no patches are currently linked, suggesting that organizations using this product should prioritize mitigation and monitoring. The vulnerability affects the confidentiality of data but does not allow modification or denial of service. The absence of user interaction requirements and the network attack vector increase the risk profile, especially in environments where the product is exposed to untrusted networks or users with low privileges.

For European organizations, this vulnerability poses a significant risk to the confidentiality of sensitive information stored or accessible via the miniOrange Prevent files / folders access product. Organizations in sectors such as finance, healthcare, government, and critical infrastructure that rely on this product for file access control could face unauthorized disclosure of sensitive data, potentially leading to data breaches, regulatory non-compliance (e.g., GDPR violations), and reputational damage. Since the vulnerability can be exploited remotely with low complexity and requires only low privileges, attackers could leverage it to escalate their access or gather intelligence for further attacks. The impact is heightened in environments where the product is integrated with other critical systems or stores sensitive configuration files. Although no known exploits are currently reported, the medium severity score and ease of exploitation warrant proactive measures. The confidentiality breach could also facilitate subsequent attacks such as credential theft or lateral movement within networks, increasing overall organizational risk.

To mitigate this vulnerability effectively, European organizations should: 1) Immediately review and restrict access controls to the miniOrange Prevent files / folders access component, ensuring that only trusted and necessary users have access, especially over network interfaces. 2) Implement strict input validation and sanitization on all file path parameters to prevent directory traversal sequences (e.g., '..', '%2e%2e') from being processed. 3) Monitor logs for unusual file access patterns or attempts to access files outside the intended directories. 4) Isolate the affected component within segmented network zones to limit exposure to untrusted networks or users. 5) Engage with miniOrange for official patches or updates and apply them promptly once available. 6) Employ Web Application Firewalls (WAFs) with rules to detect and block path traversal attempts targeting this product. 7) Conduct internal penetration testing focusing on path traversal and file access controls to identify and remediate any additional weaknesses. 8) Educate administrators and users about the risks of path traversal vulnerabilities and enforce the principle of least privilege for all file access operations. These steps go beyond generic advice by focusing on access restriction, monitoring, network segmentation, and proactive detection tailored to the specific vulnerability context.