Vulnerability found:
18 December 2009

Vendor informed:
18 December 2009

Severity level:

Richard Brain & Jan Fry - ProCheckUp Ltd (

Commonspot server is vulnerable to a vanilla XSS

Vulnerable server-side script: 'commonspot/utilities/longproc.cfm'

Unfiltered parameter: 'arbitrary'


An attacker may be able to cause execution of malicious scripting code in the browser of a victim user who clicks on a link to a RSA Authentication Agent login page. Such code would run within the context of the target domain.

This type of attack can result in non-persistent defacement of the target site, or the redirection of confidential information (i.e.: session IDs or passwords) to unauthorised third parties

Proof of concept:;--%3E%3C/script%3E%3Cscript%3Ealert%281%29%3C/script%3E

BID 37986

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