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MEDIUM · 6.1

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 in the /rest/collector...

Vulnerability 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 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE

Affected Products

VendorProductVersions
AtlassianJira Server>= 8.14.0, < 8.20.3
AtlassianJira Server And Data Center< 8.13.5

Related Weaknesses (CWE)

CWE-79

References

FAQ

What is CVE-2021-43942?

CVE-2021-43942 is a vulnerability with a CVSS score of 6.1 (MEDIUM). 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/collector...

How severe is CVE-2021-43942?

CVE-2021-43942 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43942?

Check the references section above for vendor advisories and patch information. Affected products include: Atlassian Jira Server, Atlassian Jira Server And Data Center.