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…

PriorityP341medium6.1CVSS 3.1

AVNACLPRNUIRSCCLILAN

EPSS

55.36%

98.9th percentile

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
atlassian	jira_data_center	>= 8.14.0 < unspecified	unspecified
atlassian	jira_data_center	>= unspecified < 8.13.15	8.13.15
atlassian	jira_data_center	>= unspecified < 8.20.3	8.20.3
atlassian	jira_server	>= 8.14.0 < unspecified	unspecified
atlassian	jira_server	>= 8.14.0 < 8.20.3	8.20.3
atlassian	jira_server	>= unspecified < 8.13.15	8.13.15
atlassian	jira_server	>= unspecified < 8.20.3	8.20.3
atlassian	jira_server_and_data_center	< 8.13.5	8.13.5

CVSS provenance

nvdv3.16.1MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N

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