CVE-2025-22483: qnap systems inc. license center Cross-site Scripting
Vulnerability summary
CVE-2025-22483 is a high (CVSS 7.1) Cross-site Scripting vulnerability in qnap systems inc. license center. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.4% of scored vulnerabilities.
Timeline
- 29-08-2025PublishedVulnerability first disclosed.
- 29-08-2025Last modifiedVulnerability information updated.
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 metrics
3 scores · 2 sources · 2 versions- NVDNIST7.1HighCVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:A/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS trend
Probability
0.24%
Chance of exploitation in the next 30 days
Percentile
14%
Versus all other CVEs
30-day change
0.00 pp
From 0.24% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Qnap1 product
- license_center≥ 1.8.17, < 1.8.51 | ≥ 1.9.36, < 1.9.51
Qnap systems inc.1 product
- license center≥ 1.8.x, < 1.8.51 | ≥ 1.9.x, < 1.9.51
2 vendors · 2 products
References
1 links- www.qnap.com/en/security-advisory/qsa-25-27Vendor Advisory