CVE-2026-9585
Unauthenticated Reflected Cross-Site Scripting (XSS) in Switchvox SMB Web Portal
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.
INFO
Published Date :
July 17, 2026, 5:17 p.m.
Last Modified :
Oct. 24, 2026, 8:10 p.m.
Remotely Exploit :
Yes !
Source :
57dba5dd-1a03-47f6-8b36-e84e47d335d8
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 4.0 | HIGH | 57dba5dd-1a03-47f6-8b36-e84e47d335d8 | ||||
| CVSS 4.0 | HIGH | 57dba5dd-1a03-47f6-8b36-e84e47d335d8 |
Solution
- Sanitize the portal parameter in handlers.
- Update the application to patch the vulnerability.
- Restrict user input in relevant handlers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-9585.
| URL | Resource |
|---|---|
| https://labs.sra.io/posts/switchvox/ | |
| https://sangomakb.atlassian.net/wiki/spaces/Switchvox/pages/1802371073/Switchvox+-+Release+Notes+Version+8.4.0.2+July+14+2026 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-9585 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-9585
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-9585 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-9585 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 24, 2026
Action Type Old Value New Value Added Translation Title: Switchvox SMB Edition de Sangoma, Description: Una vulnerabilidad de cross-site scripting (XSS) reflejado no autenticada existe en Sangoma Switchvox SMB Edition versión 8.3 (104997). La aplicación no logra sanear correctamente el parámetro portal suministrado a los manejadores invalid_browser e invalid_browser_login. Los datos proporcionados por el usuario se reflejan en el JavaScript generado por la aplicación, permitiendo la ejecución de scripts controlados por el atacante dentro del navegador de una víctima. -
New CVE Received by 57dba5dd-1a03-47f6-8b36-e84e47d335d8
Jul. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Sangoma', 'product': 'Switchvox SMB Edition', 'versions': [{'status': 'affected', 'version': '8.3 (104997)', 'lessThan': '8.4.0.2', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-79 Added Reference https://labs.sra.io/posts/switchvox/ Added Reference https://sangomakb.atlassian.net/wiki/spaces/Switchvox/pages/1802371073/Switchvox+-+Release+Notes+Version+8.4.0.2+July+14+2026 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-9585', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-17T16:39:05.608957Z'}