WordPress FeedList Plugin 'i' Cross-Site Scripting Vulnerability

Summary
This host is running WordPress and is prone to Cross Site Scripting vulnerability.
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
No solution or patch was made available for at least one year since disclosure of this vulnerability. Likely none will be provided anymore. General solution options are to upgrade to a newer release, disable respective features, remove the product or replace the product by another one.
Insight
The flaw is due to an input passed to 'i' parameter in 'wp-content/plugins/feedlist/handler_image.php' script is not properly sanitised before being returned to the user.
Affected
WordPress FeedList plugin version 2.61.01
References