Security readout for executives and security teams
Plain-English summary
Older Atlassian Jira Server and Data Center installations could let a remote unauthenticated attacker cause Jira field settings to be restored to defaults through a CSRF flaw. That could disrupt issue tracking workflows or data handling rules. The sources do not provide a CVSS score or confirmed active exploitation.
Executive priority
Treat this as a medium-priority hygiene and resilience issue. It is not supported as actively exploited in the provided sources, but affected Jira instances can suffer workflow-impacting configuration changes.
Technical view
CVE-2021-43952 affects Jira Server and Jira Data Center versions before 8.21.0. The issue is a CSRF vulnerability in the RestoreDefaults administrative endpoint that can reset default field configuration. Public source details are limited and do not include CVSS, CWE mapping, or exploit telemetry.
Likely exposure
Exposure is most relevant for organizations running Jira Server or Data Center below 8.21.0, especially instances reachable by users or the internet. The bundle does not identify specific minor versions beyond the pre-8.21.0 boundary.
Exploitation context
The CVE states unauthenticated remote attackers can trigger the configuration reset behavior through CSRF. CISA KEV status is false in the provided bundle, and no cited source confirms exploitation in the wild.
Researcher notes
The public bundle is sparse: no CVSS vector, CWE, exploit status, or detailed patch notes are provided. Validate against Atlassian JRASERVER-73138 and the installed Jira version before assigning urgency.
Mitigation direction
- Upgrade Jira Server or Data Center to 8.21.0 or later.
- Review Atlassian JRASERVER-73138 for vendor-specific remediation guidance.
- Restrict administrative Jira exposure where feasible.
- Monitor Jira configuration changes for unexpected field default resets.
Validation and detection
- Inventory Jira Server and Data Center versions.
- Confirm all instances are 8.21.0 or later.
- Review recent administrative audit logs for field configuration resets.
- Check whether exposed Jira instances are reachable from untrusted networks.
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.
CVE-2021-43952 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
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://jira.atlassian.com/browse/JRASERVER-73138CVE 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.