CVE-2020-2495: QNAP QTS

Medium severity, CVSS 6.1. EPSS: 1% chance of exploitation in the next 30 days.

If exploited, this cross-site scripting vulnerability could allow remote attackers to inject malicious code in File Station. QANP have already fixed these vulnerabilities in the following versions of QTS and QuTS hero. QuTS hero h4.5.1.1472 build 20201031 and later QTS 4.5.1.1456 build 20201015 and later QTS 4.4.3.1354 build 20200702 and later QTS 4.3.6.1333 build 20200608 and later QTS 4.3.4.1368 build 20200703 and later QTS 4.3.3.1315 build 20200611 and later QTS 4.2.6 build 20200611 and later

Affected products

• QNAP QTS: before 4.5.1.1456 (fixed in 4.5.1.1456); before 4.4.3.1354 (fixed in 4.4.3.1354); before 4.3.6.1333 (fixed in 4.3.6.1333); before 4.3.4.1368 (fixed in 4.3.4.1368); before 4.3.3.1315 (fixed in 4.3.3.1315); before 4.2.6 (fixed in 4.2.6)
• QNAP Quts Hero: before 4.5.1.1472 (fixed in 4.5.1.1472)

Published 2020-12-10. Last modified 2026-06-17.