CVE-2025-55054 is a medium-severity vulnerability classified under CWE-79, which pertains to Improper Neutralization of Input During Web Page Generation, commonly known as Cross-site Scripting (XSS). This vulnerability affects the Baicells EG7035E-M11 product, specifically version BaiCE_BM_2.5.26_NA. The issue arises because the device's web interface does not properly sanitize or neutralize user-supplied input before incorporating it into dynamically generated web pages. As a result, an attacker can craft malicious input containing executable scripts that, when rendered by a victim's browser, execute arbitrary JavaScript code within the context of the affected web application. The CVSS 3.1 base score is 6.1, indicating a medium severity level. The vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N indicates that the attack can be performed remotely over the network without privileges, requires user interaction (such as clicking a crafted link), and impacts confidentiality and integrity with a scope change, but does not affect availability. The vulnerability does not currently have known exploits in the wild, and no official patches have been published yet. The affected product is a network device, likely used in telecommunications or enterprise network infrastructure, exposing a web management interface that is vulnerable to XSS attacks. This vulnerability could allow attackers to steal session cookies, perform actions on behalf of authenticated users, or conduct phishing attacks by injecting malicious scripts into the device's web interface.

For European organizations, especially those utilizing Baicells EG7035E-M11 devices in their network infrastructure, this vulnerability poses a significant risk to the confidentiality and integrity of their network management operations. Successful exploitation could lead to session hijacking, unauthorized configuration changes, or the injection of malicious content that compromises user trust and network security. Given that the vulnerability requires user interaction, the risk is heightened in environments where administrators or users frequently access the device's web interface. In sectors such as telecommunications, critical infrastructure, and enterprises relying on Baicells equipment, exploitation could disrupt secure management workflows and potentially lead to broader network compromise if attackers leverage the XSS to escalate privileges or pivot within the network. The scope change in the CVSS vector suggests that the vulnerability could affect resources beyond the initially vulnerable component, increasing the potential impact. Furthermore, European organizations are subject to stringent data protection regulations (e.g., GDPR), and any compromise of sensitive management interfaces could result in compliance violations and reputational damage.

To mitigate this vulnerability, European organizations should implement the following specific measures: 1) Restrict access to the Baicells EG7035E-M11 web interface by implementing network segmentation and firewall rules to limit management access only to trusted administrative networks or VPNs. 2) Employ strong authentication mechanisms and multi-factor authentication (MFA) for accessing the device's web interface to reduce the risk of unauthorized access. 3) Educate administrators and users about the risks of clicking on untrusted links or opening suspicious content that could trigger XSS attacks, emphasizing cautious behavior when interacting with device management portals. 4) Monitor network traffic and device logs for unusual activities that may indicate attempted exploitation of the XSS vulnerability. 5) Since no official patch is currently available, consider deploying web application firewalls (WAFs) or reverse proxies with XSS filtering capabilities in front of the device's management interface to detect and block malicious payloads. 6) Engage with Baicells support to obtain updates on patches or firmware upgrades addressing CVE-2025-55054 and plan timely deployment once available. 7) Regularly review and update device firmware and software to incorporate security fixes and improvements.