Medium severity · published Aug 29, 2025
CVE-2025-22483
A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions
4.8
CVSS
0.2%
EPSS
No
On KEV
Description
A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator 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:
License Center 1.8.51 and later
License Center 1.9.51 and later
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 15% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LC
License Center · Qnap
1.8.17 before 1.8.51; 1.9.36 before 1.9.51 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-22483
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-22483
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-25-27
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