A vulnerability in the site access control implementation of Cisco WebEx Business Suite could allow an authenticated, remote attacker to inject content from the attacker-controlled WebEx site into another WebEx site. The vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by using a crafted URL to inject content from the attacker-controlled WebEx site into another WebEx site. Cisco has confirmed the vulnerability in a security notice; however, software updates are not available. To exploit this vulnerability, an attacker must authenticate to the targeted device. This access requirement limits the possibility of a successful exploit. Cisco indicates through the CVSS score that functional exploit code exists; however, the code is not known to be publicly available.
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
| Version | Description | Section | Status | Date |
| 1.0 | Initial Release | NA | Final | 2013-Dec-13 |
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