CVE-2025-59898

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

MEDIUM
5.4
CVSS Score
Published: January 28, 2026 at 11:58 AM UTC
Updated: June 17, 2026 at 09:46 AM UTC
2 products affected across 1 vendorSyncBreezeDisk Pulse

Using Sync Breeze Enterprise Server by Flexense?

Get instant alerts when new vulnerabilities affect Sync Breeze Enterprise Server - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-79

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card