Vulnslist

A vulnerability in Cisco Hosted Collaboration Solution could allow an unauthenticated, remote attacker to perform cross-site scripting (XSS) attacks. The vulnerability is due to insufficient validation of a user-supplied value. An attacker could exploit this vulnerability by convincing a user to click a specific link. A successful exploit could allow the attacker to execute arbitrary script or HTML in the user's session, which could be used to access sensitive browser-based information. Cisco has confirmed the vulnerability; however, software updates are not available. To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the provided link. Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.

Administrators are advised to contact the vendor regarding future updates and releases.

Users should verify that unsolicited links are safe to follow.

For additional information about XSS attacks and the methods used to exploit these vulnerabilities, see the Cisco Applied Mitigation Bulletin Understanding Cross-Site Scripting (XSS) Threat Vectorshttp://www.cisco.com/c/en/us/support/docs/cmb/cisco-amb-20060922-understanding-xss.html .

Administrators are advised to monitor affected systems.