CVE-2021-44053
moderate-risk
Published 2022-05-05
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
Do I need to act?
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0.42% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.7/10
Medium
NETWORK
/ LOW complexity
Affected Vendors
References (2)
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-22-16
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-22-16
42
/ 100
moderate-risk
Severity
22/34 · High
Exploitability
2/34 · Minimal
Exposure
18/34 · Moderate