CVE-2021-39126

Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to modify various resources via a Cross-Site Request Forgery (CSRF) vulnerability, following an Information Disclosure vulnerability in the referrer headers which discloses a user's CSRF token. The affected versions are before version 8.5.10, and from version 8.6.0 before 8.13.1.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.33%
Vendor Advisory atlassian.com
Affected: Atlassian Jira Server
Affected: Atlassian Jira Data Center
Published at:
Updated at:

References

Link Tags
https://jira.atlassian.com/browse/JRASERVER-71806 issue tracking patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39126?
CVE-2021-39126 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39126?
To fix CVE-2021-39126, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39126 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-39126 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39126?
CVE-2021-39126 affects Atlassian Jira Server, Atlassian Jira Data Center.
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