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CVE-2026-73703— Unauthenticated Stored Cross-Site Scripting (XSS) Vulnerability in HPE Networking Fabric Composer Web-Based Management Interface

Quick assessment

Affected
Hewlett Packard Enterprise (HPE) Fabric Composer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HPE Networking Fabric Composer 基于 Web 的管理界面存在一个漏洞，未经身份验证的邻近攻击者可利用该漏洞对界面用户发起存储型跨站脚本（XSS）攻击。若成功利用该漏洞，攻击者可在受害者浏览器的受感染界面上下文中执行任意脚本代码。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1059.007 · JavaScript

Affected Version Matrix 1

VendorProduct Version RangeStatus
Hewlett Packard Enterprise (HPE) Fabric Composer 7.0.0≤ 7.3.3 affected
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I. Basic Information for CVE-2026-73703

Vulnerability Information
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Vulnerability Title
Unauthenticated Stored Cross-Site Scripting (XSS) Vulnerability in HPE Networking Fabric Composer Web-Based Management Interface
Source: CVE Program / CVE List V5
Vulnerability Description
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Hewlett Packard Enterprise (HPE) Fabric Composer 7.0.0 ~ 7.3.3 -

II. Public POCs for CVE-2026-73703

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III. Intelligence Information for CVE-2026-73703

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Same Patch Batch · Hewlett Packard Enterprise (HPE) · 2026-09-01 · 52 CVEs total

CVE-2026-76657 10.0 CRITICAL Authentication Bypass in HPE Networking Fabric Composer API allows Administrative Access
CVE-2026-76658 10.0 CRITICAL Unauthenticated Remote Code Execution in HPE Networking Fabric Composer SSH Daemon
CVE-2026-19766 9.6 CRITICAL Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Net
CVE-2026-73700 9.0 CRITICAL Authenticated Stored Cross-Site Scripting Vulnerability (XSS) in HPE Networking Fabric Com
CVE-2026-73701 9.0 CRITICAL Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
CVE-2026-73702 8.8 HIGH Authenticated Privilege Escalation Vulnerability in the API of HPE Networking Fabric Compo
CVE-2026-73704 8.8 HIGH Authenticated Command Injection Leading to Administrative Access in HPE Networking Fabric
CVE-2026-73705 8.8 HIGH Authenticated Arbitrary File Write leads to Remote Code Execution in HPE Networking Fabric
CVE-2026-73706 8.6 HIGH Authentication Bypass in the API of HPE Networking Fabric Composer allows Data Exposure an
CVE-2026-73707 8.5 HIGH Authenticated Privilege Escalation via Broken Access Control in HPE Networking Fabric Comp
CVE-2026-73708 8.3 HIGH Fault in Business Logic allows Authenticated Sensitive Information Disclosure in HPE Netwo
CVE-2026-73709 8.3 HIGH Unauthenticated Remote Code Execution during HPE Networking Fabric Composer Installation P
CVE-2026-73710 8.2 HIGH Unauthenticated Denial of Service Vulnerabilities in API Endpoint of HPE Networking Fabric
CVE-2026-73711 8.1 HIGH Unauthenticated Privilege Escalation allows Administrative Access in HPE Networking Fabric
CVE-2026-73712 8.1 HIGH Unauthenticated Remote Code Execution in HPE Networking Fabric Composer API
CVE-2026-73713 7.8 HIGH Local Privilege Escalation Vulnerabilities in HPE Networking Fabric Composer
CVE-2026-73714 7.6 HIGH Authenticated Sensitive Information Disclosure in HPE Networking Fabric Composer API
CVE-2026-73717 7.5 HIGH Unauthenticated Command Injection Vulnerability in HPE Networking Fabric Composer Web-Base
CVE-2026-73716 7.5 HIGH Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
CVE-2026-73715 7.5 HIGH Unauthenticated Denial-of-Service (DoS) Vulnerability in the API of HPE Networking Fabric

Showing top 20 of 52 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Fabric Composer
Same vendor: Hewlett Packard Enterprise (HPE)

V. Comments for CVE-2026-73703

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