CVE-2021-44053

MEDIUM

QNAP QTS 4.3.3-5.0.0, QuTS hero <4.5.4.1771, QuTScloud <5.0.1.1998 - XSS

Title source: llm
STIX 2.1

Description

A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QTS, QuTS hero and QuTScloud. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QTS, QuTS hero and QuTScloud: QTS 4.5.4.1991 build 20220329 and later QTS 5.0.0.1986 build 20220324 and later QuTS hero h5.0.0.1986 build 20220324 and later QuTS hero h4.5.4.1971 build 20220310 and later QuTScloud c5.0.1.1949 and later

References (1)

Core 1
Core References
Vendor Advisory x_refsource_misc
https://www.qnap.com/en/security-advisory/qsa-22-16

Scores

CVSS v3 5.7
EPSS 0.0042
EPSS Percentile 62.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Details

CWE
CWE-79
Status published
Products (5)
qnap/qts 4.2.6 build_20170517 (11 CPE variants)
qnap/qts 4.3.3.0174 - 4.3.3.1945
qnap/qts 5.0.0.1716 - 5.0.0.1986
qnap/quts_hero < h4.5.4.1771
qnap/qutscloud < c5.0.1.1998
Published May 05, 2022
Tracked Since Feb 18, 2026