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Vulnerability · Published Jan 28, 2026 · Assigned by INCIBE

CVE-2025-59898Authenticated Cross-Site Scripting (XSS) vulnerability in Sync Breeze Enterprise Server

Medium 5.1

In plain English

A medium-severity cross-site scripting in Disk Pulse Enterprise from Flexense. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 9% of all known vulnerabilities).

Severity (CVSS 4.0)5.1Medium
Exploit odds (30 days)0.2%top 90.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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_exclude_dir?sid=', affecting the 'exclude_dir' parameter.

Affected products (as reported)

VendorProductVersions
Flexense Sync Breeze Enterprise Server v10.4.18
Flexense Disk Pulse Enterprise v10.4.18

Weakness: CWE-79 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

References