CVE-2026-39991
Stored Cross-Site Scripting (XSS) in Note Station file upload functionality
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
A cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3. If a remote attacker gains a user account, they can then exploit the vulnerability to inject malicious code. We have already fixed the vulnerability in the following version: Notes Station 3 3.9.12 and later
| CWE | CWE-79 |
| Vendor | qnap systems inc. |
| Product | notes station 3 |
| Published | Oct 15, 2026 |
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Affected Versions
QNAP Systems Inc. / Notes Station 3
3.9.x < 3.9.12
References
Credits
Ahmad Mamdouh