Medium severity · published May 5, 2022
CVE-2021-44053
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QTS, QuTS hero and QuTScloud
6.1
CVSS
0.8%
EPSS
No
On KEV
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
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QT
Qts · Qnap
5.0.0.1716 before 5.0.0.1986 · source: NVD
QH
Quts Hero · Qnap
before h4.5.4.1771; h5.0.0.1772 before h5.0.0.1986 · source: NVD
QU
Qutscloud · Qnap
before c5.0.1.1998 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-44053
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-44053
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-22-16
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