Persistent Authenticated XSS Vulnerability in Flexense Products

CVE-2025-59900

What is CVE-2025-59900?

A persistent authenticated Cross-Site Scripting (XSS) vulnerability exists in Sync Breeze Enterprise Server and Disk Pulse Enterprise version 10.4.18. This weakness arises from inadequate validation of user inputs in the '/server_options?sid=' endpoint. By exploiting this vulnerability, attackers can send malicious scripts to authenticated users, compromising their session and potentially allowing unauthorized access to sensitive data, including parameters related to task and error logs as well as notification addresses.

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