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CVE-2026-9585— Unauthenticated Reflected Cross-Site Scripting (XSS) in Switchvox SMB Web Portal

Quick assessment

Affected
Sangoma Switchvox SMB Edition
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.

Sangoma Switchvox SMB Edition是加拿大Sangoma公司的一款面向中小企业的VoIP通信平台。 Sangoma Switchvox SMB Edition 8.3 (104997)版本存在跨站脚本漏洞,该漏洞源于应用程序未能正确清理提供给invalid_browser和invalid_browser_login处理程序的portal参数,容易受到反射型跨站脚本攻击,用户提供数据被反射到应用程序生成的JavaScript中,允许攻击者在受害者的浏览器中执行脚本。

AI Predicted 6.1 Difficulty: Easy EPSS 0.55% · P46

Affected Version Matrix 1

VendorProduct Version RangeStatus
Sangoma Switchvox SMB Edition 8.3 (104997)< 8.4.0.2 affected
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I. Basic Information for CVE-2026-9585

Vulnerability Information

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Vulnerability Title
Unauthenticated Reflected Cross-Site Scripting (XSS) in Switchvox SMB Web Portal
Source: CVE Program / CVE List V5
Vulnerability Description
An unauthenticated reflected cross-site scripting (XSS) vulnerability exists in Sangoma Switchvox SMB Edition version 8.3 (104997). The application fails to properly sanitize the portal parameter supplied to the invalid_browser and invalid_browser_login handlers. User-supplied data is reflected into JavaScript generated by the application, allowing attacker-controlled script execution within a victim's browser.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:L
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
Sangoma Switchvox SMB Edition 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Sangoma Switchvox SMB Edition是加拿大Sangoma公司的一款面向中小企业的VoIP通信平台。 Sangoma Switchvox SMB Edition 8.3 (104997)版本存在跨站脚本漏洞,该漏洞源于应用程序未能正确清理提供给invalid_browser和invalid_browser_login处理程序的portal参数,容易受到反射型跨站脚本攻击,用户提供数据被反射到应用程序生成的JavaScript中,允许攻击者在受害者的浏览器中执行脚本。
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
Sangoma Switchvox SMB Edition 8.3 (104997) ~ 8.4.0.2 -

II. Public POCs for CVE-2026-9585

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III. Intelligence Information for CVE-2026-9585

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Security Blog Posts for CVE-2026-9585 (1)

Vendor Pages for CVE-2026-9585 (1)

Same Patch Batch · Sangoma · 2026-07-17 · 4 CVEs total

CVE-2026-9586 9.3 CRITICAL Unauthenticated SQL Injection Leading to Remote Code Execution in Switchvox SMB
CVE-2026-9588 Authenticated Stored Cross-Site Scripting (XSS) in Switchvox SMB Web Portal
CVE-2026-9587 Authenticated Local File Inclusion (LFI) in Switchvox SMB Web Portal

IV. Related Vulnerabilities