CVE-2026-9585

Unauthenticated Reflected Cross-Site Scripting (XSS) in Switchvox SMB Web Portal

HIGH
8.6
CVSS Score
Published: July 17, 2026 at 03:56 PM UTC
Updated: October 24, 2026 at 08:10 PM UTC
1 product affected across 1 vendorSwitchvox

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Severity
HIGH8.6
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

8.3 (104997) ≤ v < 8.4.0.28.3 (104997)
Affected range stops below 8.4.0.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.6HIGHSRA
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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