Medium [CVE-2026-39991] cross-site scripting (XSS) vulnerability has been reported to affect Notes Station 3.
This medium-severity QNAP advisory covers CVE-2026-39991 affecting Notes Station 3.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
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Summary
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
- Notes Station 3 3.9.x before 3.9.12
NVD record · high-confidence parse· fetched 6 days ago·verify at source
Mitigation
Upgrade to a fixed release: 3.9.12. That is the remediation for this advisory.
The vendor advisory may list additional interim mitigations or workarounds not captured here — review it before change work.
NVD record · high-confidence parse· fetched 6 days ago·verify at source
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