Medium severity · published Jan 14, 2022
CVE-2021-38677
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QcalAgent
6.1
CVSS
0.7%
EPSS
No
On KEV
Description
A cross-site scripting (XSS) vulnerability has been reported to affect QNAP device running QcalAgent. If exploited, this vulnerability allows remote attackers to inject malicious code. We have already fixed this vulnerability in the following versions of QcalAgent: QcalAgent 1.1.7 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
QC
Qcalagent · Qnap
before 1.1.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38677
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38677
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-21-60
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