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Vulnerability of Cisco Unified Communications Manager: Cross Site Scripting

Synthesis of the vulnerability 

An attacker can trigger a Cross Site Scripting of Cisco Unified Communications Manager, in order to run JavaScript code in the context of the web site.
Vulnerable systems: Cisco CUCM.
Severity of this threat: 2/4.
Creation date: 17/05/2018.
Références of this weakness: CERTFR-2018-AVI-240, cisco-sa-20180516-cucm-cup-xss, CSCvg89116, CVE-2018-0328, VIGILANCE-VUL-26156.

Description of the vulnerability 

The Cisco Unified Communications Manager product offers a web service.

However, it does not filter received data before inserting them in generated HTML documents.

An attacker can therefore trigger a Cross Site Scripting of Cisco Unified Communications Manager, in order to run JavaScript code in the context of the web site.
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This cybersecurity vulnerability impacts software or systems such as Cisco CUCM.

Our Vigil@nce team determined that the severity of this vulnerability is medium.

The trust level is of type confirmed by the editor, with an origin of document.

An attacker with a expert ability can exploit this weakness alert.

Solutions for this threat 

Cisco Unified Communications Manager: solution CSCvg89116.
The solution is described on the Cisco site:
  https://tools.cisco.com/bugsearch/bug/CSCvg89116
  https://tools.cisco.com/quickview/bug/CSCvg89116
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