Security readout for executives and security teams
Plain-English summary
This flaw lets a Jira administrator run code on the Jira server through the Email Templates feature. It is serious because successful abuse can compromise confidentiality, integrity, and availability, but it requires administrator privileges, so exposure depends heavily on admin account security and affected self-managed Jira versions.
Executive priority
Treat this as a high-priority hardening and upgrade item for self-managed Jira. It is not presented as actively exploited in the supplied sources, but administrator-level RCE in a collaboration platform can become a major business incident if admin credentials are compromised.
Technical view
CVE-2021-43947 affects Atlassian Jira Server and Data Center before 8.13.15, and 8.14.0 before 8.20.3. It is a network-reachable RCE in Email Templates requiring high privileges, with CVSS 3.1 score 7.2. Sources state it bypasses the prior JSDSERVER-8665 fix.
Likely exposure
Organizations running self-managed Jira Server or Jira Data Center in the affected version ranges are exposed. Jira Cloud is not listed in the provided affected products. Risk is highest where administrator accounts are numerous, weakly protected, or exposed through compromised credentials.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not marked KEV in the bundle. Exploitation requires administrator privileges, but successful abuse could still produce full server-side impact once an admin account is compromised or misused.
Researcher notes
Key constraints are PR:H, UI:N, AV:N, and unchanged scope. The vulnerable surface is Jira Email Templates, and the issue bypasses a previous fix referenced as JSDSERVER-8665. Avoid assuming exploit availability or affected products beyond Jira Server and Data Center from the supplied sources.
Mitigation direction
- Confirm Jira Server or Data Center version against the affected ranges.
- Upgrade to a version outside the affected ranges per Atlassian guidance.
- Restrict Jira administrator privileges to essential personnel only.
- Enforce MFA and strong credential controls for Jira administrators.
- Review Atlassian JRASERVER-73067 for vendor-specific remediation details.
Validation and detection
- Inventory all self-managed Jira Server and Data Center instances.
- Verify each instance is at least 8.13.15 or 8.20.3 where applicable.
- Review admin account membership and recent administrator activity.
- Check whether Email Templates configuration changed unexpectedly.
- Confirm remediation evidence in change records or asset inventory.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-43947 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.2 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H1.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/JRASERVER-73067CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.