CVE-2025-11337 is a path traversal vulnerability identified in the Four-Faith Water Conservancy Informatization Platform versions 2.0 through 2.2. The vulnerability arises from improper sanitization of the fileName parameter in the web application endpoints /aloneReport/index.do/../../aloneReport/download.do and othersusrlogout.do. By manipulating this parameter, an attacker can traverse directories on the server filesystem and access arbitrary files outside the intended directory scope. This flaw is remotely exploitable without requiring any authentication or user interaction, making it a significant risk. The vulnerability affects the confidentiality of the system by potentially exposing sensitive configuration files, logs, or other critical data stored on the server. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction (UI:N), and partial confidentiality impact (VC:L), resulting in a medium severity score of 6.9. The vendor Four-Faith has not responded to early disclosure attempts, and no official patches or mitigations have been released. Public exploit code is available, which increases the likelihood of exploitation by threat actors. The affected product is used in water conservancy and infrastructure informatization, which are critical sectors. The vulnerability could be leveraged for reconnaissance or further attacks by exposing sensitive files that may contain credentials or system information.

For European organizations, especially those involved in water management, infrastructure, and critical utilities, this vulnerability poses a risk of unauthorized data disclosure. Exposure of sensitive files could lead to leakage of operational data, system configurations, or credentials, potentially enabling further compromise or disruption of water conservancy operations. Given the critical nature of water infrastructure, any compromise could affect service availability indirectly or enable sabotage. The lack of authentication and ease of exploitation increase the threat level. Additionally, the vendor's non-responsiveness and absence of patches mean organizations must rely on their own mitigations, increasing operational risk. This vulnerability could also be leveraged by nation-state actors or cybercriminals targeting European critical infrastructure, especially in countries with advanced water management digital systems. The impact on confidentiality is partial but significant, while integrity and availability impacts are indirect but possible through chained attacks.

1. Immediately restrict external network access to the affected endpoints (/aloneReport/download.do and othersusrlogout.do) using network segmentation or firewall rules. 2. Deploy a web application firewall (WAF) with rules specifically designed to detect and block path traversal attempts, including suspicious fileName parameter values containing ../ sequences. 3. Implement strict input validation and sanitization on the fileName parameter to reject any directory traversal characters or patterns. 4. Conduct thorough audits of server file permissions to ensure that the web application user has minimal access rights, limiting exposure if traversal occurs. 5. Monitor web server logs for unusual access patterns or attempts to access sensitive files. 6. If possible, isolate the affected platform in a controlled environment until a vendor patch or official fix is available. 7. Engage with Four-Faith or third-party security providers to develop or request patches or mitigations. 8. Educate operational staff about the vulnerability and potential indicators of compromise. 9. Consider deploying intrusion detection systems (IDS) tuned to detect path traversal exploits targeting this platform. 10. Plan for incident response readiness in case exploitation attempts are detected.