CVE-2021-34359

A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running Proxy Server. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of Proxy Server: QTS 4.5.x: Proxy Server 1.4.2 ( 2021/12/30 ) and later

• CWE-79
• CWE-79

• https://www.qnap.com/en/security-advisory/qsa-22-04Vendor Advisory
• https://www.qnap.com/en/security-advisory/qsa-22-04Vendor Advisory

Published

Feb 25, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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