What is CVE-2021-39124?

CVE-2021-39124 is a medium-severity vulnerability in Atlassian Data Center, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2021-09-14.

How severe is CVE-2021-39124?

Medium severity. CVSS v3 base score is 4.3 out of 10.

CSRF in Atlassian Data Center

CVE-2021-39124

The Cross-Site Request Forgery (CSRF) failure retry feature of Atlassian Jira Server and Data Center before version 8.16.0 allows remote attackers who are able to trick a user into retrying a request to bypass CSRF protection and replay a crafted request.

Vulnerability class: CSRF (Cross-Site Request Forgery)

EPSS: 0.005 (41.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N.

Affected products

Atlassian Data_center
Atlassian Jira
Atlassian Jira Data Center — versions unspecified
Atlassian Jira Server — versions unspecified

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

security@atlassian.com (x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-39124?: CVE-2021-39124 is a medium-severity vulnerability in Atlassian Data Center, classified under Cross-Site Request Forgery (CSRF). CVSS score: 4.3/10. Published 2021-09-14.
How severe is CVE-2021-39124?: Medium severity. CVSS v3 base score is 4.3 out of 10.