CVE-2025-59896: Authenticated Cross-Site Scripting (XSS) vulnerability in Sync Breeze Enterprise Server

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-01-28 · updated 2026-06-17
Weakness: CWE-79

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 '/add_command?sid=', affecting the 'command_name' parameter.

Affected products

DiskPulse: 10.4.18
SyncBreeze: 10.4.18

References

https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-flexense-products

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