CVE-2025-64235 is a path traversal vulnerability classified under CWE-22 affecting AmentoTech's Tuturn product versions before 3.6. Path traversal vulnerabilities occur when an application improperly restricts user-supplied pathname inputs, allowing attackers to access files and directories outside the intended restricted directory. In this case, an authenticated user with low privileges can manipulate file path parameters to access sensitive files on the server that should otherwise be inaccessible. The vulnerability does not require user interaction but does require the attacker to have some level of authentication, which limits exploitation to insiders or compromised accounts. The CVSS 3.1 base score of 6.5 reflects a medium severity with a high impact on confidentiality (C:H), no impact on integrity (I:N), and no impact on availability (A:N). The attack vector is network-based (AV:N), with low attack complexity (AC:L), and privileges required are low (PR:L). No known exploits have been reported in the wild, and no official patches have been released yet. The vulnerability is significant because unauthorized file access can lead to disclosure of sensitive information, configuration files, or credentials, which can be leveraged for further attacks or data breaches. Organizations using Tuturn should prioritize input validation improvements and monitor for updates from AmentoTech.

For European organizations, the primary impact is unauthorized disclosure of sensitive information due to path traversal exploitation. This can compromise confidentiality of internal documents, configuration files, or user data stored on servers running vulnerable Tuturn versions. Such data breaches can lead to regulatory penalties under GDPR, reputational damage, and potential lateral movement by attackers within the network. Since the vulnerability requires authentication with low privileges, insider threats or compromised user accounts pose a significant risk. The lack of impact on integrity and availability limits the threat to data exposure rather than system disruption or data manipulation. However, the exposure of sensitive files can facilitate further attacks, including privilege escalation or targeted espionage. Organizations in sectors with high compliance requirements, such as finance, healthcare, and government, are particularly at risk. The absence of known exploits provides a window for proactive mitigation before active exploitation occurs.

1. Immediately audit and restrict user input handling related to file path parameters in Tuturn configurations to prevent traversal sequences (e.g., '../'). 2. Implement strict allowlisting of file paths and sanitize all user-supplied inputs to ensure they cannot escape designated directories. 3. Enforce the principle of least privilege on user accounts to minimize the impact of compromised credentials. 4. Monitor authentication logs and file access patterns for unusual activity indicative of path traversal attempts. 5. Segregate sensitive files and directories with additional access controls and encryption where feasible. 6. Stay alert for official patches or updates from AmentoTech and apply them promptly once available. 7. Consider deploying Web Application Firewalls (WAFs) with rules to detect and block path traversal payloads targeting Tuturn. 8. Conduct regular security assessments and penetration tests focusing on file access controls within Tuturn deployments. 9. Educate users about credential security to reduce risk of account compromise. 10. Prepare incident response plans to quickly address any detected exploitation attempts.