What is CVE-2021-34361?

CVE-2021-34361 is a medium-severity vulnerability in Qnap Nas Proxy Server, classified under Cross-site Scripting. CVSS score: 5.3/10. Published 2022-02-25.

How severe is CVE-2021-34361?

Medium severity. CVSS v3 base score is 5.3 out of 10.

XSS in Qnap Nas Proxy Server

CVE-2021-34361

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

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.007 (49.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Qnap Nas_proxy_server
Qnap Qts
Qnap Systems Inc. Proxy Server — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

security@qnapsecurity.com.tw (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-34361?: CVE-2021-34361 is a medium-severity vulnerability in Qnap Nas Proxy Server, classified under Cross-site Scripting. CVSS score: 5.3/10. Published 2022-02-25.
How severe is CVE-2021-34361?: Medium severity. CVSS v3 base score is 5.3 out of 10.