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CVE-2026-50040— Cross-site Scripting in StoneFly Storage Concentrator

Quick assessment

Affected
StoneFly Storage Concentrator
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.

StoneFly storage concentrator是StoneFly公司的一种数据集中存储设备。 StoneFly Storage Concentrator 8.0.4.22之前版本存在跨站脚本漏洞，该漏洞源于404错误页面中未清理的内容被回显，容易受到反射型跨站脚本攻击。

CVSS 6.1 · Medium EPSS 0.33% · P24

Affected Version Matrix 4

VendorProduct Version RangeStatus
StoneFly Storage Concentrator < 8.0.4.22 affected
8.0.4.29 unaffected
StoneFly Storage Concentrator Virtual Machine < 8.0.4.22 affected
8.0.4.29 unaffected
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I. Basic Information for CVE-2026-50040

Vulnerability Information
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Vulnerability Title
Cross-site Scripting in StoneFly Storage Concentrator
Source: CVE Program / CVE List V5
Vulnerability Description
Storage Concentrator (SC & SCVM) is vulnerable to reflected cross-site scripting due to unsanitized content being echoed back in 404 error pages. An attacker can craft a malicious URL that, when visited by an authenticated user, causes arbitrary script content to execute within the victim's browser session in the context of the application. This could be leveraged to steal session cookies, redirect users, or perform unauthorized actions on behalf of the victim.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
StoneFly Storage Concentrator 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
StoneFly storage concentrator是StoneFly公司的一种数据集中存储设备。 StoneFly Storage Concentrator 8.0.4.22之前版本存在跨站脚本漏洞，该漏洞源于404错误页面中未清理的内容被回显，容易受到反射型跨站脚本攻击。
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
StoneFly Storage Concentrator 0 ~ 8.0.4.22 -
StoneFly Storage Concentrator Virtual Machine 0 ~ 8.0.4.22 -

II. Public POCs for CVE-2026-50040

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III. Intelligence Information for CVE-2026-50040

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Vendor Advisories for CVE-2026-50040 (2)

Vendor Pages for CVE-2026-50040 (1)

Same Patch Batch · StoneFly · 2026-06-30 · 5 CVEs total

CVE-2026-56415 10.0 CRITICAL OS Command Injection in StoneFly Storage Concentrator
CVE-2026-56413 10.0 CRITICAL OS Command Injection in StoneFly Storage Concentrator
CVE-2026-55721 9.3 CRITICAL SQL Injection in StoneFly Storage Concentrator
CVE-2026-50110 9.2 CRITICAL Use of Hard-coded Credentials in StoneFly Storage Concentrator

IV. Related Vulnerabilities

Same product: Storage Concentrator
Same vendor: StoneFly
Same weakness: CWE-79

V. Comments for CVE-2026-50040

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