Cross-Site Scripting (XSS) in HPE Networking Fabric Composer
Summary
Cross-site scripting in HPE Networking Fabric Composer (CVE-2026-73703). Successful exploitation can lead to full system takeover.
AI summary
Produced by SecPulse using an external AI model; it may contain mistakes. Check the original description and references below before acting on it.
A vulnerability tracked as CVE-2026-73703 has been found in HPE Networking Fabric Composer.
Successful exploitation can lead to full system takeover. CVSS score: 8.8/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "HPE Networking Fabric Composer CVE-2026-73703" on the vendor's site.
CVE-2026-73703 (HPE Networking Fabric Composer) — CWE-79 / CVSS v3 8.8
Attack vector: adjacent-network / unauthenticated
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
Cross-site scripting (XSS) (CWE-79) exists in HPE Networking Fabric Composer.
Check the vendor advisory for the affected versions of HPE Networking Fabric Composer.
Severity: High (CVSS 8.8/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1
Identify exposureidentify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで HPE Networking Fabric Composer を使っているサービスとバージョンを洗い出す。
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2
Post-deployment verificationverify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Original description The description as published by the source.
A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface. A successful exploit could allow an attacker to execute arbitrary script code in a victim's browser in the context of the affected interface.
Source: NIST National Vulnerability Database NVD GitHub Advisory
References
- web support.hpe.com
- web nvd.nist.gov
- web github.com