CVE-2020-3136

Name of the Vulnerable Software and Affected Versions Cisco Jabber Guest versions 11.1(2) and earlier

Description A vulnerability in the web-based management interface of Cisco Jabber Guest could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of the web-based management interface of an affected device. The vulnerability exists because the web-based management interface of the affected device does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading a user 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 to access sensitive, browser-based information.

Recommendations For Cisco Jabber Guest versions 11.1(2) and earlier, update to a version later than 11.1(2) to resolve the issue. As a temporary workaround, consider restricting access to the web-based management interface to minimize the risk of exploitation. Avoid clicking on suspicious links from untrusted sources to reduce the risk of attack.