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Medium severity · published Jan 4, 2022
CVE-2021-43942
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a Reflected Cross-Site Scripting (XSS) vulnerability…
6.1
CVSS
55.4%
EPSS
No
On KEV
Description
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a Reflected Cross-Site Scripting (XSS) vulnerability in the /rest/collectors/1.0/template/custom endpoint. To exploit this issue, the attacker must trick a user into visiting a malicious website. The affected versions are before version 8.13.15, and from version 8.14.0 before 8.20.3.
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)55.4% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JI
Jira · Atlassian
8.14.0 before 8.20.3 · source: NVD
JS
Jira Server And Data Center · Atlassian
before 8.13.5 · source: NVD
Affected product
JI
Jira
Atlassian
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-43942
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-43942
Issue Tracking
https://jira.atlassian.com/browse/JRASERVER-73068
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