What is the vulnerability ID?

The vulnerability ID is CVE-2020-4021.

What is the severity of CVE-2020-4021?

The severity of CVE-2020-4021 is medium with a severity value of 5.4.

How can I fix CVE-2020-4021?

To fix CVE-2020-4021, update your Atlassian Jira Server or Data Center to versions 8.5.5 or 8.8.1.

Vulnerability/
CVE-2020-4021

medium

5.4

CWE

1/6/2020

30/3/2022

CVE-2020-4021: XSS

Q: What software versions are affected?

Affected versions are before 8.5.5 and from 8.6.0 before 8.8.1 of Atlassian Jira Server and Data Center.

Q: How does CVE-2020-4021 work?

CVE-2020-4021 allows remote attackers to inject arbitrary HTML or JavaScript via a cross-site scripting (XSS) vulnerability in the XML export view.

First published: Mon Jun 01 2020(Updated: )

Affected versions are: Before 8.5.5, and from 8.6.0 before 8.8.1 of Atlassian Jira Server and Data Center allow remote attackers to inject arbitrary HTML or JavaScript via a cross site scripting (XSS) vulnerability in the XML export view.

Credit: security@atlassian.com

Affected Software	Affected Version	How to fix
Atlassian JIRA	<7.13.16
Atlassian Jira Data Center	>=8.0.0<8.5.5
Atlassian Jira Data Center	>=8.6.0<8.8.1
Atlassian Jira Server	>=8.0.0<8.5.5
Atlassian Jira Server	>=8.6.0<8.8.1
Atlassian Jira Software Data Center	<7.13.16

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Reference Links

https://jira.atlassian.com/browse/JRASERVER-70923

Frequently Asked Questions

What is the vulnerability ID?
The vulnerability ID is CVE-2020-4021.
What software versions are affected?
Affected versions are before 8.5.5 and from 8.6.0 before 8.8.1 of Atlassian Jira Server and Data Center.
What is the severity of CVE-2020-4021?
The severity of CVE-2020-4021 is medium with a severity value of 5.4.
How does CVE-2020-4021 work?
CVE-2020-4021 allows remote attackers to inject arbitrary HTML or JavaScript via a cross-site scripting (XSS) vulnerability in the XML export view.
How can I fix CVE-2020-4021?
To fix CVE-2020-4021, update your Atlassian Jira Server or Data Center to versions 8.5.5 or 8.8.1.

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agent/last-modified-date
agent/softwarecombine
agent/first-publish-date
vendor/atlassian
canonical/atlassian jira
canonical/atlassian jira data center
version/atlassian jira data center/8.0.0
version/atlassian jira data center/8.6.0
canonical/atlassian jira server
version/atlassian jira server/8.0.0
version/atlassian jira server/8.6.0
canonical/atlassian jira software data center

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