CVE-2021-43942
15Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 55%
exploitation probability
55%top 1% of all CVEs
observed exploitation
nono source reports it
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.