Security readout for executives and security teams
Plain-English summary
This vulnerability affects Atlassian Jira Server and Data Center before 8.18.0. A custom field name could inject script or HTML into the AssociateFieldToScreens page, potentially causing browser-side actions when a user views that page.
Executive priority
Handle as a normal security maintenance priority, elevated for internet-facing or broadly administered Jira instances. The issue is credible but source data lacks CVSS, KEV status, or exploitation evidence.
Technical view
CVE-2021-39117 is a cross-site scripting issue in Jira Server/Data Center before 8.18.0. The reported sink is the AssociateFieldToScreens page, and the attacker-controlled input is the name of a custom field. Public sources provide no CVSS score or CWE mapping.
Likely exposure
Organizations running Jira Server or Jira Data Center versions before 8.18.0 may be exposed. Practical exposure depends on whether an attacker can influence custom field names and whether users access the affected screen.
Exploitation context
The supplied sources do not report active exploitation, and the CVE is not listed as KEV in the provided bundle. The issue is browser-side XSS, so impact likely depends on user context and Jira permissions.
Researcher notes
The public bundle identifies the vulnerable page and input but omits CVSS, CWE, detailed prerequisites, and exploitation evidence. Avoid assuming exploitability beyond the reported XSS condition and version boundary.
Mitigation direction
- Upgrade Jira Server or Data Center to version 8.18.0 or later.
- Review Atlassian issue JRASERVER-72597 for vendor-specific guidance.
- Restrict custom field creation or renaming to trusted administrators.
- Reduce exposure of Jira administrative pages to untrusted networks where possible.
Validation and detection
- Inventory Jira Server and Data Center versions across all environments.
- Confirm affected deployments are not below version 8.18.0.
- Review custom field administration permissions for excessive access.
- Check Atlassian JRASERVER-72597 for any additional affected-version details.
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-2021-39117 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-72597CVE 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.