Description
A cross-site scripting (XSS) vulnerability has been reported to affect Download Station. If a remote attacker gains a user account, they can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: Download Station 5.10.0.305 ( 2025/09/16 ) and later Download Station 5.10.0.304 ( 2025/09/08 ) and later
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
Active
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
None
Confidentiality (Subsequent System)
High
Integrity (Subsequent System)
High
Availability (Subsequent System)
None
E
Unchanged
Affected products
- QNAP Systems Inc. / Download Station5.10.x – 5.10.0.305 ( 2025/09/16 )
- QNAP Systems Inc. / Download Station5.10.x – 5.10.0.304 ( 2025/09/08 )