CVE-2026-55729
Loytec · LWEB-802
Loytec LWEB-802 versions prior to 5.0.8 are vulnerable to an exposure of sensitive information via browser local storage, potentially allowing unauthorized access to stored credentials.
Executive summary
An exposure of sensitive information vulnerability in Loytec LWEB-802 could lead to the unauthorized access of credentials stored within browser local storage.
Vulnerability
This vulnerability is classified as CWE-200 (Exposure of Sensitive Information) and occurs within the browser local storage implementation. The vulnerability is accessible to unauthenticated attackers, provided they can successfully execute a client-side attack that triggers the exposure.
Business impact
The potential for credential exposure poses a significant risk to the integrity and confidentiality of the affected management systems. An attacker obtaining these credentials could gain unauthorized access to the underlying infrastructure, leading to potential data compromise or operational disruption. With a CVSS score of 7.7, this issue is classified as High severity, necessitating prompt attention to prevent unauthorized administrative or user-level access.
Remediation
Immediate Action: Update the Loytec LWEB-802 software to version 5.0.8 or later to resolve the underlying storage security flaw.
Proactive Monitoring: Review web access logs for unusual patterns or attempts to access local storage-related endpoints, and monitor for any signs of anomalous session activity.
Compensating Controls: Implement browser security policies or endpoint protection solutions that restrict the storage of sensitive data in browser-based caches where possible.
Exploitation status
Public Exploit Available: No (no confirmed public exploit)
Analyst recommendation
Given the High severity of this vulnerability and the potential for credential theft, administrators should prioritize the deployment of the 5.0.8 patch across all LWEB-802 instances. Ensuring that software is updated promptly is the only definitive way to mitigate the risk of credential exposure and prevent potential downstream unauthorized access to your environment.