A cross-site scripting (XSS) vulnerability has been reported to affect Network & Virtual Switch. If a remote attacker gains an administrator account, they can then exploit the vulnerability to inject malicious code. We have already fixed the vulnerability in the following version: Network & Virtual Switch in QTS 5.1.8.2823 build 20240712 and later Network & Virtual Switch in QTS 5.2.1.2930 build 20241025 and later Network & Virtual Switch in QuTS cloud c5.2.4.3041 build 20250211 and later Network & Virtual Switch in QuTS hero h5.1.8.2823 build 20240712 and later Network & Virtual Switch in QuTS hero h5.2.1.2929 build 20241025 and later
https://www.qnap.com/en/release-notes/qutscloud/c5.2.4.3041/20250211
https://www.qnap.com/en/release-notes/quts_hero/h5.2.1.2929/20241025
https://www.qnap.com/en/release-notes/quts_hero/h5.1.8.2823/20240712
https://www.qnap.com/en/release-notes/qts/5.2.1.2930/20241025
https://www.qnap.com/en/release-notes/qts/5.1.8.2823/20240712
Published: 2026-10-15
Updated: 2026-10-15
Base Score: 4.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N
Severity: Medium
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
Base Score: 6.2
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Severity: Medium
EPSS: 0.0036