Multiple vulnerabilities in the web interface of the Cisco Registered Envelope Service could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack or redirect a user of the affected service to an undesired web page.
The vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface of the affected service. An attacker could exploit these vulnerabilities by persuading a user
to click a malicious link or by sending an HTTP request that could cause the affected service to redirect the request to a specified malicious URL. A successful exploit could allow the attacker to
execute arbitrary script code in the context of the web interface of the affected system or allow the attacker to access sensitive browser-based information on the affected system. These types of exploits could also be used in phishing attacks that send users to malicious websites without their knowledge.
There are no workarounds that address these vulnerabilities.
For additional information about cross-site scripting attacks and the methods used to exploit these vulnerabilities, see the following resources:
This advisory is available at the following link: