SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2021-43952

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to restore the default configuration of fields via a Cross-Site Request Forgery (CSRF) vulnerability in the /secure/admin/RestoreDefaults.jspa endpoint.

MEDIUM 4.3EPSS 0.41%

Does this matter?

Lower severity and a low EPSS score (0.41%). Track it; it rarely justifies an emergency change on its own.

Description

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to restore the default configuration of fields via a Cross-Site Request Forgery (CSRF) vulnerability in the /secure/admin/RestoreDefaults.jspa endpoint. The affected versions are before version 8.21.0.

CVSS 3.1
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
EPSS
0.41% probability · 36th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-352
Affected
atlassian/jira data center · atlassian/jira server
Source
security@atlassian.com
EPSS trend
0%3%5%26 October 2026: 0.41%26 October 202626 October 2026

EPSS 0.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.