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Qsync Central Path Traversal Vulnerability Allowing Unauthorized File Access

Vulnerability

A path traversal vulnerability has been identified in Qsync Central versions 5.0.x. This vulnerability allows remote attackers with user account access to read unintended files or system data. The issue arises from improper handling of file paths, which can be exploited to access restricted information.

Impact

Exploitation of this vulnerability could lead to unauthorized access to sensitive files or system data.

Remediation

Users are advised to update Qsync Central to version 5.0.0.4 or later. Instructions for updating Qsync Central are available on the QNAP website.

Added: Feb 11, 2026, 1:17 PM
Updated: Feb 11, 2026, 5:07 PM

Vulnerability Rating

Custom Algorithm
spread
6.2
impact
2.5
exploitability
6.6
remediation
7.7
relevance
3.0
threat
0.0
urgency
2.9
incentive
0.0

Our algorithm analyzes dozens of metrics to generate these 8 key vulnerability categories, which are then combined to calculate the overall risk score.