CVE intelligence and bounded remediation
CVE-2024-47226 — Netbox Netbox security vulnerability
A stored cross-site scripting (XSS) vulnerability exists in NetBox 4.1.0 within the "Configuration History" feature of the "Admin" panel via a /core/config-revisions/ Add action. An authenticated user can inject arbitrary JavaScript or HTML into the "Top banner" field. NOTE: Multiple third parties have disputed this as not a vulnerability. It is argued that the configuration revision banner feature is meant to contain unsanitized HTML in order to display notifications to users. Since these fields are intended to display unsanitized HTML, this is working as intended.
- Severity
- Medium
- CVSS
- 5.4 (3.1)
- Published
- 2024-09-22
- CISA KEV
- Not currently listed
- Ecosystem
- javascript/npm
- Weaknesses
- CWE-79
Affected products
- netbox / netbox / 4.1.0
Matched remediation archetype
Cross-site scripting and unsafe browser output
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Trace reflected, stored, and DOM-derived untrusted values into HTML, attributes, URLs, styles, scripts, and client-side template sinks.
- Identify affected origins, authenticated user roles, sensitive browser capabilities, and where content is shared across tenants.
- Review framework escaping, rich-text sanitization, legacy templates, and client-side rendering paths.
Remediate safely
- Use context-aware framework output encoding and safe DOM APIs; keep untrusted data out of executable contexts.
- Sanitize intentionally supported markup with a maintained allowlist policy and validate URLs and attributes separately.
- Update affected rendering components and add tests for every output context using inert sentinel markup.
Authoritative sources
Complete CVE record and remediation plan
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