CVE-2018-15436: Cisco Webex Business Suite 31

Medium severity, CVSS 6.1. EPSS: 1.4% chance of exploitation in the next 30 days.

A vulnerability in the web-based management interface of Cisco Webex Events Center, Cisco Webex Meeting Center, Cisco Webex Support Center, and Cisco Webex Training Center could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of the affected service. The vulnerability is due to insufficient validation of user-supplied input by the web-based management interface of the affected service. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.

Affected products

• Cisco Webex Business Suite 31: from 31.29.2
• Cisco Webex Business Suite 32: from 32.17.2
• Cisco Webex Business Suite 33: from 33.4.3
• Cisco Webex Meetings Online: version t33.4.0 only

Published 2018-10-05. Last modified 2026-06-17.