CVE-2021-1525: Cisco Webex Meetings Online

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to redirect users to a malicious file. This vulnerability is due to improper validation of URL paths in the application interface. An attacker could exploit this vulnerability by persuading a user to follow a specially crafted URL that is designed to cause Cisco Webex Meetings to include a remote file in the web UI. A successful exploit could allow the attacker to cause the application to offer a remote file to a user, which could allow the attacker to conduct further phishing or spoofing attacks.

Affected products

• Cisco Webex Meetings Online: version 41.3.5 only
• Cisco Webex Meetings Server: before 3.0 (fixed in 3.0); version 3.0 only; version 4.0 only

Published 2021-06-04. Last modified 2026-06-17.