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CVE

CVE-2021-39126

Affected versions of Atlassian Jira Server and Data Center allow remote attackers to modify various resources via a Cros

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.

MEDIUM · CVSS 6.5 EPSS 0.00196
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  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

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

Affected Products & Versions

4
atlassian jira data center< 8.5.10
atlassian jira data center>= 8.6.0 and < 8.13.1
atlassian jira server< 8.5.10
atlassian jira server>= 8.6.0 and < 8.13.1
▣

Scoring & Timeline

6.5
MEDIUM · CVSS v3.1 · security@atlassian.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD21 Oct 2021 · 03:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://jira.atlassian.com/browse/JRASERVER-71806Issue TrackingPatchVendor Advisory
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