PT-2011-41: Stored XSS vulnerability in Citrix License Administration Console Vulnerable softwareCitrix XenServer Administration Console Version: 11.9 and earlierApplication link: http://www.citrix.com/English/ps2/products/product.asp?contentID=683148Severity levelSeverity level: Medium Impact: Cross-site scripting Access Vector: Network exploitable CVSS v2: Base Score: 4.9 Vector: (AV:N/AC:H/Au:S/C:C/I:N/A:N)CVE: not assigned Vulnerability descriptionPositive Research Center has discovered a Stored XSS vulnerability in Citrix License Administration Console.Since special characters in usernames are not properly escaped, a stored XSS attack is possible.How to fixUpdate your software up to the latest versionAdvisory status10.11.2011 - Vendor is notified 10.11.2011 - Vendor gets vulnerability details 13.03.2012 - Vendor releases fixed version and details 27.03.2012 - Public disclosureCreditsThe vulnerability was discovered by Maxim Tsoy, Kirill Mosolov, Positive Research Center (Positive Technologies Company)Referenceshttp://en.securitylab.ru/lab/PT-2011-41 http://support.citrix.com/article/CTX128167Reports on the vulnerabilities previously discovered by Positive Research:http://ptsecurity.com/research/advisory/ http://en.securitylab.ru/lab/