CVE-2025-7329 is a stored Cross-Site Scripting (XSS) vulnerability identified in Rockwell Automation's Comms - 1783-NATR product, specifically affecting versions 1.006 and earlier. The vulnerability is categorized under CWE-79, indicating improper neutralization of input during web page generation. The root cause is the absence of proper filtering and encoding of special characters in configuration fields that are editable via the product's web interface. An attacker with administrative privileges can inject malicious scripts into these fields, which are then stored and rendered in the web interface. When a legitimate user accesses the affected page, the malicious script executes in their browser context. This can lead to unauthorized access to sensitive information, manipulation of displayed data, or even denial of service by disrupting the web interface's availability. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:H) but high privileges are actually needed here (PR:H), user interaction is required (UI:P), and high impact on confidentiality, integrity, and availability (C:H/I:H/A:H). Although no known exploits are currently in the wild, the vulnerability's nature and impact make it a critical concern for environments relying on this device for industrial communication. The lack of available patches at the time of publication necessitates immediate mitigation efforts. Given the device's role in industrial automation, exploitation could have cascading effects on operational technology environments.

For European organizations, especially those in manufacturing, energy, and critical infrastructure sectors, this vulnerability poses a significant threat. The Comms - 1783-NATR module is used in industrial communication networks, often integral to supervisory control and data acquisition (SCADA) systems. Exploitation could allow attackers to manipulate configuration data, leading to misinformation, operational disruption, or unauthorized control actions. Confidentiality breaches could expose sensitive operational data, while integrity violations might cause incorrect system behavior. Availability impacts could disrupt industrial processes, potentially causing safety hazards or financial losses. The requirement for administrative access limits the attack surface but also implies insider threats or compromised credentials could be leveraged. The high CVSS score reflects the potential for severe operational impact. European organizations with interconnected IT and OT environments may face increased risk of lateral movement and broader network compromise if this vulnerability is exploited.

1. Immediately restrict administrative access to the Comms - 1783-NATR web interface using network segmentation and strict access control lists (ACLs). 2. Implement multi-factor authentication (MFA) for all administrative accounts to reduce the risk of credential compromise. 3. Monitor and audit configuration changes on the device to detect unauthorized modifications promptly. 4. Employ web application firewalls (WAFs) or intrusion prevention systems (IPS) capable of detecting and blocking XSS payloads targeting the device's web interface. 5. If patching is not yet available, consider disabling the web interface or limiting its exposure to trusted networks only. 6. Educate administrators on the risks of stored XSS and enforce strong password policies to mitigate insider threats. 7. Regularly review and sanitize all inputs in configuration fields where possible, and apply custom filtering rules at the network perimeter to detect suspicious payloads. 8. Engage with Rockwell Automation support for updates and apply patches promptly once released.