CVE-2021-43942: XSS
First published: Tue Jan 04 2022(Updated: )
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.
Credit: security@atlassian.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Atlassian Jira Server | >=8.14.0<8.20.3 | |
| Atlassian Jira Server and Data Center | <8.13.5 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-43942?
CVE-2021-43942 is a vulnerability in Atlassian Jira Server and Data Center that allows remote attackers to inject arbitrary HTML or JavaScript via a Reflected Cross-Site Scripting (XSS) vulnerability.
How does CVE-2021-43942 affect Atlassian Jira Server?
CVE-2021-43942 affects Atlassian Jira Server versions between 8.14.0 and 8.20.3.
How does CVE-2021-43942 affect Atlassian Jira Server and Data Center?
CVE-2021-43942 affects Atlassian Jira Server and Data Center versions up to 8.13.5.
What is the severity of CVE-2021-43942?
CVE-2021-43942 has a severity rating of medium with a CVSS score of 6.1.
How can I fix CVE-2021-43942?
To fix CVE-2021-43942, upgrade Atlassian Jira Server to version 8.20.3 or later, and Atlassian Jira Server and Data Center to version 8.13.5 or later.
- collector/nvd-index
- agent/weakness
- agent/references
- agent/author
- agent/severity
- agent/tags
- agent/type
- agent/description
- agent/softwarecombine
- agent/first-publish-date
- agent/last-modified-date
- vendor/atlassian
- canonical/atlassian jira server
- version/atlassian jira server/8.14.0
- canonical/atlassian jira server and data center