Medium4.3Cisco Updated
Cisco Webex App Open Redirect Vulnerability
cisco-sa-webex-app-redirect-KOyxhffH Published Jun 17, 2026Updated by vendor Jun 17, 2026
CVE-2026-20178
Affected products & platforms
CiscoUnified CommunicationsWebex
Summary
A vulnerability in the browser-based version of Cisco Webex App could have allowed an unauthenticated, remote attacker to redirect users to a malicious webpage. Cisco has addressed this vulnerability in the Cisco Webex App, and no customer action is needed. This vulnerability existed due to improper input validation of URL parameters in an HTTP request.
Affected versions
- Scope: This vulnerability affects Cisco Webex App, which is cloud based.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
Mitigation checklist
Temporary workarounds
- There are no workarounds that address this vulnerability.
Official advisory · high-confidence parse· fetched 1 day ago·verify at source
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