CVE-2025-7746 identifies a cross-site scripting (XSS) vulnerability classified under CWE-79 in Schneider Electric's Altivar Process Drives series (models ATV630 through 6L0). The vulnerability stems from improper neutralization of user-supplied input during the generation of web pages served by the drives' embedded web interfaces. This flaw allows an attacker to inject malicious scripts that execute within the context of a victim's browser session when they access the compromised web interface or a crafted URL. The vulnerability affects all versions of the product line, indicating a systemic issue in the input handling mechanisms. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), no user interaction required for the attack to be initiated (UI:P), and no impact on confidentiality, integrity, or availability (VC:N, VI:N, VA:N), but user interaction is necessary to trigger the script execution. This suggests that while the vulnerability does not directly compromise the device's core functions, it can be leveraged to steal session cookies, perform unauthorized actions on behalf of the user, or manipulate displayed data. No patches or known exploits are currently reported, but the presence of this vulnerability in critical industrial control equipment raises concerns about potential targeted attacks. The embedded web interface is often used for configuration and monitoring of the drives, so exploitation could lead to unauthorized changes or disclosure of sensitive operational data. The vulnerability's presence in widely deployed industrial drives underscores the importance of secure web interface design in operational technology (OT) environments.

For European organizations, especially those in manufacturing, utilities, and process industries relying on Schneider Electric's Altivar Process Drives, this vulnerability poses a risk of unauthorized access to device management interfaces. Exploitation could lead to data theft, manipulation of drive settings, or disruption of industrial processes if attackers leverage the XSS flaw to conduct session hijacking or inject malicious commands via the web interface. While the vulnerability does not directly affect the drives' control logic or availability, compromised web sessions could facilitate further attacks or unauthorized configuration changes, potentially impacting operational integrity. Given the critical role of these drives in automation, even limited manipulation could cause production delays or safety hazards. The medium severity rating reflects the need for timely mitigation but also indicates that exploitation requires some user interaction and does not immediately compromise device core functions. European industries with high automation adoption and reliance on Schneider Electric products are at increased risk, emphasizing the need for vigilance in OT cybersecurity.

1. Implement strict input validation and output encoding on all web interface inputs to prevent injection of malicious scripts. 2. Restrict access to the Altivar Process Drives' web management interfaces using network segmentation, VPNs, or firewall rules to limit exposure to trusted personnel only. 3. Employ web application firewalls (WAFs) capable of detecting and blocking XSS attack patterns targeting these devices. 4. Educate users and administrators to avoid clicking on suspicious links or opening untrusted web pages related to device management. 5. Monitor device logs and network traffic for unusual activity indicative of attempted exploitation. 6. Coordinate with Schneider Electric for timely release and application of official patches or firmware updates addressing this vulnerability. 7. Where possible, disable or limit web interface functionality if not required for daily operations. 8. Use multi-factor authentication and strong credentials for device access to reduce the risk of session hijacking. 9. Conduct regular security assessments and penetration testing focused on OT web interfaces to identify and remediate similar vulnerabilities.