CVE-2024-21897

5.4 mediumEPSS 0.3%

Medium (5.4) in qnap. EPSS 0.3% chance of exploitation in the next 30 days.

A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. If exploited, the vulnerability could allow authenticated users to inject malicious code via a network. We have already fixed the vulnerability in the following versions: QTS 5.1.6.2722 build 20240402 and later QuTS hero h5.1.6.2734 build 20240414 and later

Severity

CVSS 3.1

5.4 medium

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 25% of CVEs (scores of 2026-10-31)
CWE: CWE-79
Published: 2024-09-06
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

qnap:qts
qnap:quts_hero

References

https://www.qnap.com/en/security-advisory/qsa-24-20

Check your stack JSON