Security readout for executives and security teams
Plain-English summary
Nagios XI versions before 5.7.5 have a cross-site scripting issue in Dashboard Tools when editing dashboards. This can let malicious script run in a user’s browser within the Nagios XI interface. The source bundle does not provide CVSS, exploit details, or confirmed exploitation.
Executive priority
Address during normal vulnerability remediation unless the Nagios XI console is broadly exposed or used by many privileged operators. Prioritize faster if administrators access it from shared workstations or if dashboard editing is available beyond trusted staff.
Technical view
CVE-2020-27989 is an XSS vulnerability in Nagios XI Dashboard Tools, specifically the Edit Dashboard function, affecting versions before 5.7.5. The available sources do not specify the vulnerable parameter, required privileges, attacker positioning, or whether stored or reflected behavior is involved.
Likely exposure
Exposure is likely limited to Nagios XI deployments running versions earlier than 5.7.5. Risk is higher where the Nagios XI web console is reachable by many users or untrusted networks. The bundle does not identify exact authentication or role requirements.
Exploitation context
The sources do not report active exploitation, and CISA KEV status is false. Public evidence provided only confirms the vulnerability description and vendor changelog reference. Treat exploitability details as incomplete until validated against vendor advisories or internal testing.
Researcher notes
The source bundle lacks CVSS, CWE, affected CPEs, exploit status, and detailed root-cause information. Do not assume a specific XSS type or privilege requirement. Validation should focus on version confirmation and vendor documentation rather than offensive reproduction.
Mitigation direction
- Inventory Nagios XI instances and record exact installed versions.
- Upgrade affected Nagios XI systems to 5.7.5 or later where feasible.
- Review Nagios vendor changelog and guidance before applying production changes.
- Restrict Nagios XI web access to trusted administrative networks.
- Limit dashboard editing permissions to trusted users only.
Validation and detection
- Confirm whether each Nagios XI instance is earlier than 5.7.5.
- Check whether Dashboard Tools and Edit Dashboard are accessible to non-admin users.
- Review web logs for unusual dashboard edit activity.
- Verify access controls around the Nagios XI web interface.
- After upgrade, confirm the reported version is 5.7.5 or later.
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
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CVE-2020-27989 mapping review
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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://www.nagios.com/downloads/nagios-xi/change-log/CVE reference · x_refsource_CONFIRM
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.