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Vulnerability record · CVE-2026-73700 · published 1 September 2026

CVE-2026-73700: Arubanetworks fabric composer cross-site scripting vulnerability

Arubanetworks · Fabric Composer

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to conduct a stored cross-site scripting (XSS) attack against an administrative 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.

9.0 CVSS 3.1 Critical EPSS 0.42% · top 65.9% CWE-79 · Cross-site scripting
9.0CVSS 3.1 base score
0.42%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
2 Sep 2026Last modified by NVD

Description

A vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to conduct a stored cross-site scripting (XSS) attack against an administrative 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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw05133en_us&docLocale=en_US Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-76658Arubanetworks fabric composer improper authentication vulnerabilityA vulnerability has been identified in the SSH daemon of HPE Networking Fabric Composer that could allow an unauthenticated remote attacker to gain a…EPSS 0.75%10.0CVE-2026-76657Arubanetworks fabric composer improper authentication vulnerabilityVulnerabilities have been identified in the API of HPE Networking Fabric Composer that could potentially allow an unauthenticated remote attacker to …EPSS 0.75%9.6CVE-2026-19766Arubanetworks fabric composer improper authentication vulnerabilityAn authentication bypass vulnerability exists in the underlying operating system of HPE Networking Fabric Composer. Successful exploitation could all…EPSS 0.26%9.0CVE-2026-73701Arubanetworks fabric composer code injection vulnerabilityAn unauthenticated remote code execution vulnerability exists in the underlying operating system of HPE Networking Fabric Composer and could be explo…EPSS 0.67%8.8CVE-2026-73702Arubanetworks fabric composer incorrect authorization vulnerabilityA privilege escalation vulnerability exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low pr…EPSS 0.42%8.8CVE-2026-73703Arubanetworks fabric composer cross-site scripting vulnerabilityA vulnerability in the web-based management interface of HPE Networking Fabric Composer could allow an unauthenticated adjacent attacker to conduct a…EPSS 0.34%8.8CVE-2026-73704Arubanetworks fabric composer command injection vulnerabilityA command sanitization bypass exists in the API of HPE Networking Fabric Composer. Successful exploitation could allow an authenticated low privilege…EPSS 0.53%8.8CVE-2026-73705Arubanetworks fabric composer vulnerabilityAn arbitrary file write vulnerability in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to escala…EPSS 0.62%

Source: NIST National Vulnerability Database (record CVE-2026-73700), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.