CVE-2021-43941Network attack vector

Unauthorized resource modification via misconfigured XSRF protection

Published Feb 15, 2022 · Updated Oct 8, 2024

CSRF in Atlassian Jira Server and Data Center before 8.13.15 and 8.14.0 through 8.20.2 allows remote attackers to modify resources. The jira-importers-plugin applies misconfigured XSRF protection to CsvFieldMappingsPage.jspa and ImporterValueMappingsPage.jspa, leaving state-changing requests without effective anti-CSRF validation. Exploitation requires user interaction through a browser session authorized for the targeted resource; the reported consequence is unauthorized modification, not disclosure or service interruption.

CVSS severity6.5
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

CSRF in Atlassian Jira Server and Data Center before 8.13.15 and 8.14.0 through 8.20.2 allows remote attackers to modify resources. The jira-importers-plugin applies misconfigured XSRF protection to CsvFieldMappingsPage.jspa and ImporterValueMappingsPage.jspa, leaving state-changing requests without effective anti-CSRF validation. Exploitation requires user interaction through a browser session authorized for the targeted resource; the reported consequence is unauthorized modification, not disclosure or service interruption.

The record

CVE
CVE-2021-43941
Published
Feb 15, 2022
Updated
Oct 8, 2024
Vendor
Atlassian
Product
Jira Server
Classifications
CWE-352
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 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=unspecified <8.13.15
  3. Affected versionversion=unspecified <8.20.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Atlassian · Jira Serverversion=8.14.0 <unspecified; version=unspecified <8.13.15; version=unspecified <8.20.3
Atlassian · Jira Data Centerversion=8.14.0 <unspecified; version=unspecified <8.13.15; version=unspecified <8.20.3

Published CVSS scores

4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)

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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