Security readout for executives and security teams
Plain-English summary
This issue could let a logged-in attacker see private Jira Service Management objects through the Custom Fields feature. The source bundle identifies Server and Data Center deployments before 4.21.0 as affected. No public severity score or active exploitation evidence is provided.
Executive priority
Prioritize remediation for externally reachable or broadly accessible JSM environments. Treat this as a data exposure risk; urgency depends on sensitive object usage and authenticated user population size.
Technical view
CVE-2021-43949 is a broken access control flaw in Jira Service Management Server and Data Center Custom Fields. Authenticated remote attackers may view private objects. Affected versions are described as before 4.21.0; the bundle does not provide CVSS, CWE, or detailed exploit conditions.
Likely exposure
Exposure is limited to self-managed Atlassian Jira Service Management Server or Data Center instances running versions before 4.21.0, especially where many users can authenticate.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. The attacker must be authenticated and remote; the documented impact is unauthorized viewing of private objects, not code execution.
Researcher notes
The available bundle is sparse: no CVSS, CWE, exploit detail, or patch notes beyond the before-4.21.0 version boundary. Analysis should remain focused on authenticated access control bypass and private object exposure.
Mitigation direction
- Upgrade affected Server or Data Center instances to 4.21.0 or later.
- Review Atlassian JSDSERVER-10982 for vendor-specific remediation guidance.
- Restrict Jira Service Management accounts to users with a business need.
- Review custom field configurations that reference sensitive private objects.
Validation and detection
- Inventory Jira Service Management Server and Data Center deployments.
- Confirm each instance version is 4.21.0 or later.
- Identify authenticated user groups with broad portal or project access.
- Review whether custom fields expose sensitive private object data.
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-2021-43949 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/JSDSERVER-10982CVE 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.