CVE-2021-43942

EUVD-2021-30804
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
6.1 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 86%
Affected Products (NVD)
VendorProductVersion
atlassianjira_server
8.14.0 ≤
𝑥
< 8.20.3
atlassianjira_server_and_data_center
𝑥
< 8.13.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://jira.atlassian.com/browse/JRASERVER-73068
https://jira.atlassian.com/browse/JRASERVER-73068