XSS in QNAP License Center
CVE-2025-22483
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
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.002 (13.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 13.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- QNAP License Center
- QNAP Systems Inc. License Center — versions 1.8.x, 1.9.x
Weakness classification (CWE)
References
- www.qnap.com/en/security-advisory/qsa-25-27 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-22483?
- CVE-2025-22483 is a medium-severity vulnerability in QNAP License Center, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2025-08-29.
- How severe is CVE-2025-22483?
- Medium severity. CVSS v3 base score is 4.8 out of 10.