PT-2026-50500 · Cisco · Cisco Webex App

Published 2026-06-17 · Updated 2026-06-17 · CVE-2026-20178

Positive Technologies (AI Summary)

CVSS v3.1

4.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Name of the Vulnerable Software and Affected Versions Cisco Webex App (affected versions not specified)

Description An issue in the browser-based version of the application allows an unauthenticated remote attacker to redirect users to a malicious webpage. This occurs due to improper input validation of URL parameters in an HTTP request. An attacker can exploit this by persuading a user to click a specially crafted URL.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Open Redirect

Weakness Enumeration

CWE-601

Related Identifiers

CVE-2026-20178

Affected Products

Cisco Webex App

References · 3

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-app-redirect-KOyxhffH · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2067352057812574701 · Twitter Post
• https://twitter.com/CVEnew/status/2067351030187139361 · Twitter Post