CVE-2022-38247
Published: 07 September 2022
Summary
CVE-2022-38247 is a medium-severity Cross-site Scripting (CWE-79) vulnerability in Nagios Nagios Xi. Its CVSS base score is 4.8 (Medium).
Operationally, ranked in the top 2.9% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Nagios XI version 5.8.6 contains a cross-site scripting vulnerability, tracked as CVE-2022-38247 and assigned CWE-79, that is reachable through the System Settings page in the administrative interface. The flaw carries a CVSS 3.1 score of 4.8 and requires high privileges along with user interaction, yet it can affect resources beyond the immediate scope of the vulnerable component.
An authenticated administrator who can modify System Settings can supply malicious script content that executes in the browsers of other users who subsequently view the affected pages, enabling theft of session tokens or other client-side actions within the Nagios XI application.
The vendor change log for Nagios XI 5.8.7 documents the release that addresses the issue, indicating that upgrading from 5.8.6 eliminates the vulnerable code path.
The associated EPSS score reached 0.3427 without a documented rise from a materially lower baseline after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-40839
Vulnerability details
Nagios XI v5.8.6 was discovered to contain a cross-site scripting (XSS) vulnerability via the System Settings page under the Admin panel.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.