CVE-2025-59900
Unknown Unknown - Not Provided
Persistent Authenticated XSS in Sync Breeze and Disk Pulse Enterprise

Publication date: 2026-01-28

Last updated on: 2026-02-10

Assigner: Spanish National Cybersecurity Institute, S.A. (INCIBE)

Description
Sync Breeze Enterprise Server v10.4.18 and Disk Pulse Enterprise v10.4.18 contain a persistent authenticated Cross-Site Scripting (XSS) vulnerability. An attacker could send malicious content to an authenticated user and steal information from their session due to insufficient validation of user input in  '/server_options?sid=', affecting the 'tasks_logs_dir', 'errors_logs_dir', 'error_notifications_address', 'status_notifications_address', and 'status_reports_address' parameters.
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Meta Information
Published
2026-01-28
Last Modified
2026-02-10
Generated
2026-06-16
AI Q&A
2026-01-29
EPSS Evaluated
2026-06-15
NVD
CVE-2025-59900
EUVD
EUVD-2025-206500
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
flexense syncbreeze 10.4.18
flexense diskpulse 10.4.18
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
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Executive Summary

This vulnerability is a persistent authenticated Cross-Site Scripting (XSS) issue in Sync Breeze Enterprise Server v10.4.18 and Disk Pulse Enterprise v10.4.18. It occurs because the application does not properly validate user input in certain parameters ('tasks_logs_dir', 'errors_logs_dir', 'error_notifications_address', 'status_notifications_address', and 'status_reports_address') within the '/server_options?sid=' endpoint. An attacker who is authenticated can send malicious content that gets stored and later executed in the context of another authenticated user's session.

Impact Analysis

This vulnerability can allow an attacker to steal information from an authenticated user's session by injecting malicious scripts. This could lead to unauthorized access to sensitive data, session hijacking, or other malicious actions performed on behalf of the user, potentially compromising the security and integrity of the affected system.

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