CVE-2021-43946Network attack vector

Authenticated subscription modification via missing authorization

Published Jan 5, 2022 · Updated Oct 8, 2024

Broken access control in Atlassian Jira Server and Data Center allows remote authenticated users to add administrator groups to filter subscriptions. The /secure/EditSubscription.jspa endpoint accepts administrator-group additions from authenticated non-administrators without enforcing the required authorization check. Any authenticated account can alter a filter subscription's group recipients, but the published record identifies no broader administrative control or availability impact.

CVSS severity6.5
Medium
EPSS probability1.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Broken access control in Atlassian Jira Server and Data Center allows remote authenticated users to add administrator groups to filter subscriptions. The /secure/EditSubscription.jspa endpoint accepts administrator-group additions from authenticated non-administrators without enforcing the required authorization check. Any authenticated account can alter a filter subscription's group recipients, but the published record identifies no broader administrative control or availability impact.

The record

CVE
CVE-2021-43946
Published
Jan 5, 2022
Updated
Oct 8, 2024
Vendor
Atlassian
Product
Jira Server
Classifications
Unavailable
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 5, 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 <8.13.21
  3. Affected versionversion=unspecified <8.20.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Atlassian · Jira Serverversion=8.14.0 <unspecified; version=unspecified <8.13.21; version=unspecified <8.20.9
Atlassian · Jira Data Centerversion=8.14.0 <unspecified; version=unspecified <8.13.21; version=unspecified <8.20.9

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo