Vtiger 'return_url' Parameter Multiple Cross Site Scripting Vulnerabilities

Summary
This host is installed with Vtiger CRM and is prone to multiple xss vulnerabilities
Impact
Successful exploitation will allow attacker to execute arbitrary HTML and script code in a user's browser session in the context of an affected site Impact Level: Application
Solution
Upgrade to the latest version of Vtiger 6.0 or later, For updates refer to https://www.vtiger.com
Insight
Flaws are due to improper sanitation of user supplied input passed via 'return_url' parameter to savetemplate.php and unspecified vectors to deletetask.php, edittask.php, savetask.php, or saveworkflow.php.
Affected
Vtiger CRM version 5.4.0
Detection
Send a crafted HTTP GET request and check whether it responds with error message.
References