Is CVE-2021-43947 actively exploited?

No active exploitation of CVE-2021-43947 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2021-43947 be exploited remotely?

Yes. CVE-2021-43947 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2021-43947?

CVE-2021-43947 has a CVSS score of 7.2 (HIGH).

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HIGH

CVE-2021-43947

NVD-CWE-noinfoPublished: January 6, 2022· Updated: Jun 17, 2026

7.2

CVSS v3.1

Official Description

Affected versions of Atlassian Jira Server and Data Center allow remote attackers with administrator privileges to execute arbitrary code via a Remote Code Execution (RCE) vulnerability in the Email Templates feature. This issue bypasses the fix of https://jira.atlassian.com/browse/JSDSERVER-8665. The affected versions are before version 8.13.15, and from version 8.14.0 before 8.20.3.

NVD Source

Technical Analysis

CVE-2021-43947 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.