Security readout for executives and security teams
Plain-English summary
This Jira Server and Data Center flaw lets a remote attacker inject unwanted HTML or JavaScript through pasted content, such as content copied from a PDF into a description field. The main business risk is malicious script execution in users' browsers inside Jira.
Executive priority
Schedule remediation through the normal vulnerability program, with higher priority for internet-facing or widely shared Jira systems. The issue is credible but the bundle lacks evidence of active exploitation or critical severity.
Technical view
CVE-2021-39111 is an XSS issue in the Jira Editor plugin's handling of supplied pasted content. Sources list affected Jira Server and Data Center versions before 8.5.18, 8.6.0 before 8.13.10, and 8.14.0 before 8.18.2.
Likely exposure
Exposure is likely where self-managed Jira Server or Data Center runs in the affected version ranges, especially if Jira is broadly accessible to employees, contractors, or external users.
Exploitation context
The provided sources do not show CISA KEV listing, active exploitation, public exploit status, CVSS, or CWE data. Treat exploitation status as unconfirmed based on this bundle.
Researcher notes
Key gaps are absent CVSS, CWE, and exploit-status data in the supplied bundle. The affected component and version boundaries are clear, but validation should rely on Jira version inventory and Atlassian's JRASERVER-72716 guidance.
Mitigation direction
- Upgrade Jira Server or Data Center to 8.5.18, 8.13.10, 8.18.2, or later as applicable.
- Prioritize externally reachable or high-user Jira instances first.
- Review Atlassian advisory JRASERVER-72716 for vendor-specific guidance.
- Limit Jira access to trusted users while remediation is pending.
- Monitor for unexpected script behavior or unusual issue edits.
Validation and detection
- Inventory Jira Server and Data Center versions against the affected ranges.
- Confirm the Editor plugin is covered by the installed fixed Jira version.
- Check vulnerability scanner results against CVE-2021-39111.
- Review Jira access paths, especially internet-facing or partner-accessible instances.
- Document remediation evidence, including version and upgrade date.
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-2021-39111 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-72716CVE 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.