CVE-2026-9585CWE-79

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

High · published July 17, 2026

CVSS v4.0
8.6
EPSS
1%
Percentile
45.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
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
EPSS
0.00554 · 45.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-07-17T15:56Z
EPSS history
Timeline
  • 17 JUL 15:56Z
    Unauthenticated Reflected Cross-Site Scripting (XSS) in Switchvox SMB Web Portal
    cvelistv5