CVE-2025-9256 is a high-severity vulnerability identified in Uniong's WebITR product, classified under CWE-36: Absolute Path Traversal. This vulnerability allows remote attackers who already possess regular privileges on the system to exploit an arbitrary file reading flaw. Specifically, the flaw enables attackers to manipulate file path inputs to traverse directories and access arbitrary system files outside the intended directory scope. The vulnerability does not require user interaction and can be exploited over the network without additional authentication barriers beyond the regular privileges the attacker already holds. The CVSS 4.0 base score of 7.1 reflects the ease of exploitation (low attack complexity), network attack vector, and high impact on confidentiality due to unauthorized disclosure of sensitive files. However, integrity and availability impacts are not present. The vulnerability affects version 0 of WebITR, indicating either an early or initial release. No patches or known exploits in the wild have been reported yet, but the presence of this vulnerability poses a significant risk if leveraged by threat actors. The absence of patches necessitates immediate attention to mitigate potential exploitation. The vulnerability's core technical issue is improper validation or sanitization of file path inputs, allowing directory traversal sequences (e.g., ../) to access files outside the web application's root directory, potentially exposing sensitive configuration files, credentials, or other critical system data.

For European organizations using Uniong's WebITR, this vulnerability could lead to unauthorized disclosure of sensitive internal files, including configuration files, user data, or credentials stored on the affected systems. Such data leakage could facilitate further attacks, including privilege escalation or lateral movement within the network. The impact is particularly critical for sectors handling sensitive personal data under GDPR, such as healthcare, finance, and government agencies, where data breaches can result in substantial regulatory penalties and reputational damage. Additionally, exposure of system files could reveal infrastructure details aiding attackers in crafting more sophisticated attacks. Since exploitation requires only regular privileges, insider threats or compromised low-privilege accounts could be leveraged to exploit this vulnerability. The lack of known exploits currently provides a window for proactive mitigation, but the risk remains high due to the potential severity of data exposure.

1. Immediate implementation of strict input validation and sanitization on all file path parameters within WebITR to prevent directory traversal sequences. 2. Employ allowlisting of file paths and restrict file access strictly to necessary directories. 3. Deploy web application firewalls (WAFs) with rules specifically designed to detect and block path traversal attempts targeting WebITR. 4. Conduct thorough code reviews and security testing focusing on file handling functions within WebITR. 5. Isolate WebITR instances in segmented network zones with minimal privileges to limit potential lateral movement. 6. Monitor logs for unusual file access patterns or repeated traversal attempts. 7. Since no official patches are available, consider temporary compensating controls such as disabling vulnerable features or restricting access to trusted users only. 8. Engage with Uniong for timely patch releases and apply updates as soon as they become available. 9. Educate privileged users about the risks and signs of exploitation to enhance detection capabilities.