---
id: CVE-2026-20170
title: >-
  A vulnerability in the Desktop Agent functionality of Cisco Webex Contact
  Center could have allowed an unauthenticated, remote attacker to conduct
  cross-site scripting attacks
summary: >-
  A vulnerability in the Desktop Agent functionality of Cisco Webex Contact
  Center could have allowed an unauthenticated, remote attacker to conduct
  cross-site scripting attacks. Cisco has addressed this vulnerability in the
  Cisco Webex Co…
severity: medium
cvss: 6.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N'
cwe:
  - CWE-80
vendor: cisco
product: webex_contact_center
affected:
  - webex_contact_center
published: '2026-04-15'
updated: '2026-07-01'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20170'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webexcc-xss-WEX5nUnA
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00222
epssPercentile: 0.13073
ingestedAt: '2026-07-01T16:42:14.739Z'
---

## Overview

A vulnerability in the Desktop Agent functionality of Cisco Webex Contact Center could have allowed an unauthenticated, remote attacker to conduct cross-site scripting attacks. Cisco has addressed this vulnerability in the Cisco Webex Contact Center service, and no customer action is needed.

 This vulnerability existed because HTML and script content was not properly handled. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by persuading a user to follow a malicious link. A successful exploit could have allowed the attacker to steal sensitive information from the browser, including authentication and session information.

## Affected

- `webex_contact_center`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.