WordPress Alipay plugin Cross Site Scripting Vulnerability

Summary
This host is installed with WordPress Alipay plugin and is prone to cross-site scripting vulnerability.
Impact
Successful exploitation will allow remote attackers to execute arbitrary HTML and script code in a users browser session in the context of an affected site. Impact Level: Application
Solution
Upgrade to WordPress Alipay plugin 3.6.2 or later. For updates refer https://wordpress.org/plugins/alipay/
Insight
Input passed via the para_ret['total_fee GET parameter to inc.tenpay_notify.php script is not validated before returning it to users.
Affected
WordPress Alipay plugin 3.6.0 and earlier
Detection
Send a crafted data via HTTP GET request and check whether it is able to read cookie or not.
References