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CVE-2021-39124

MEDIUM
4.3
CVSS Score
Published: September 14, 2021 at 04:20 AM UTC
Updated: June 17, 2026 at 04:03 AM UTC
4 products affected across 1 vendorJiraData CenterJira Server

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Data Center· Atlassianatlassian-app
95%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira· Atlassianatlassian-app
95%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira Data Center· Atlassianatlassian-app
60%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement
Jira Server· Atlassianatlassian-app
60%
v < 8.16.0
Affected range stops below 8.16.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCVendor Advisory
Source: [email protected]
https://jira.atlassian.com/browse/JRASERVER-72761

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-352

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