CVE-2021-41308Network attack vector

Authenticated replication-settings modification via missing authorization

Published Oct 26, 2021 · Updated Oct 9, 2024

Broken access control in Atlassian Jira Server and Data Center allows remote authenticated users to alter File Replication settings. The ReplicationSettings!default.jspa endpoint accepts settings changes from authenticated non-administrators without enforcing administrator authorization. Remote authenticated users without administrator privileges can modify replication configuration, affecting configuration integrity without reported data disclosure or service interruption.

CVSS severity6.5
Medium
EPSS probability1.01%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Broken access control in Atlassian Jira Server and Data Center allows remote authenticated users to alter File Replication settings. The ReplicationSettings!default.jspa endpoint accepts settings changes from authenticated non-administrators without enforcing administrator authorization. Remote authenticated users without administrator privileges can modify replication configuration, affecting configuration integrity without reported data disclosure or service interruption.

The record

CVE
CVE-2021-41308
Published
Oct 26, 2021
Updated
Oct 9, 2024
Vendor
Atlassian
Product
Jira Server
Classifications
CWE-285, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 26, 2021CVE publishedPublication date reported by the CVE source.
  2. Oct 9, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.14.0 <unspecified
  2. Affected versionversion=8.7.0 <unspecified
  3. Affected versionversion=unspecified <8.13.12
  4. Affected versionversion=unspecified <8.20.1
  5. Affected versionversion=unspecified <8.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Atlassian · Jira Serverversion=8.14.0 <unspecified; version=8.7.0 <unspecified; version=unspecified <8.13.12; version=unspecified <8.20.1; version=unspecified <8.6.0
Atlassian · Jira Data Centerversion=8.14.0 <unspecified; version=8.7.0 <unspecified; version=unspecified <8.13.12; version=unspecified <8.20.1; version=unspecified <8.6.0

Published CVSS scores

4.0NIST NVDAV:N/AC:L/Au:S/C:N/I:P/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1565.001Stored Data Manipulation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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