Medium severity · published Feb 25, 2022
CVE-2021-34361
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running Proxy Server
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
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
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)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NP
Nas Proxy Server · Qnap
before 1.4.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-34361
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-34361
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-22-04
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