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CVE-2026-73700— Authenticated Stored Cross-Site Scripting Vulnerability (XSS) 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.

Hewlett Packard Enterprise Fabric Composer是美国Hewlett Packard Enterprise公司的一款网络编排与自动化管理平台。 Hewlett Packard Enterprise Fabric Composer 7.0.0版本至7.3.3版本存在安全漏洞，该漏洞源于Web管理界面存在存储型跨站脚本问题，可能导致经过身份验证的低权限操作者用户对管理用户实施存储型XSS攻击，在受害者浏览器环境中执行任意脚本代码。

CVSS 9.0 · Critical EPSS 0.42% · P37 Updated Sep 02, 2026

Possible ATT&CK Techniques 1 AI

T1189 · Drive-by Compromise

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Hewlett Packard Enterprise (HPE)	Fabric Composer	`7.0.0≤ 7.3.3`	affected

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I. Basic Information for CVE-2026-73700

Vulnerability Information

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Vulnerability Title

Authenticated Stored Cross-Site Scripting Vulnerability (XSS) 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 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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/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

Vulnerability Title

Hewlett Packard Enterprise Fabric Composer 安全漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

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-2026-73700

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-73700

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https://www.cve.org/CVERecord?id=CVE-2026-73700

Same Patch Batch · Hewlett Packard Enterprise (HPE) · 2026-09-01 · 86 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-2026-73749	9.8 CRITICAL	Unauthenticated Buffer Overflow Vulnerabilities lead to Remote Code Execution in AOS-CX
CVE-2026-19766	9.6 CRITICAL	Authentication Bypass leads to Administrative control of adjacent network hosts in HPE Net
CVE-2026-73701	9.0 CRITICAL	Unauthenticated Remote Code Execution in HPE Networking Fabric Composer
CVE-2026-73750	8.8 HIGH	Authenticated Buffer Overflow Vulnerabilities in AOS-CX API Endpoint Leads to Possible Cod
CVE-2026-73753	8.8 HIGH	Authenticated Remote Command Injection Vulnerabilities in AOS-CX Command Line Interface
CVE-2026-73752	8.8 HIGH	Unauthenticated Arbitrary File Write Vulnerability Leads to Remote Code Execution in AOS-C
CVE-2026-73751	8.8 HIGH	Authenticated Remote Command Injection in AOS-CX Web-based Management Interface
CVE-2026-73782	8.8 HIGH	Unauthenticated Format String Vulnerability leads to Remote Code Execution in AOS-CX
CVE-2026-73705	8.8 HIGH	Authenticated Arbitrary File Write leads to Remote Code Execution in HPE Networking Fabric
CVE-2026-73704	8.8 HIGH	Authenticated Command Injection Leading to Administrative Access in HPE Networking Fabric
CVE-2026-73703	8.8 HIGH	Unauthenticated Stored Cross-Site Scripting (XSS) Vulnerability in HPE Networking Fabric C
CVE-2026-73702	8.8 HIGH	Authenticated Privilege Escalation Vulnerability in the API of HPE Networking Fabric Compo
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-2026-73781	8.4 HIGH	Authenticated Stored Cross-Site Scripting Vulnerability (XSS) in AOS-CX Web-Based Manageme
CVE-2026-73709	8.3 HIGH	Unauthenticated Remote Code Execution during HPE Networking Fabric Composer Installation P
CVE-2026-73708	8.3 HIGH	Fault in Business Logic allows Authenticated Sensitive Information Disclosure in HPE Netwo
CVE-2026-73780	8.3 HIGH	Lack of Cross-Site Request Forgery (CSRF) Protections for Certificate-Authenticated Sessio

Showing top 20 of 86 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Fabric Composer

Same vendor: Hewlett Packard Enterprise (HPE)