JVN#97370614: MagazinegerZ vulnerable to cross-site scripting

MagazinegerZ <http://cgiscriptmarket.com/magazinegerZ/&gt; provided by CGI Script Market is a CGI script which provides a function to enable email newsletter distribution for a website.
MagazinegerZ contains a stored cross-site scripting vulnerability (CWE-79) which allows unintentional script execution on the web browser of the administrative user while logging in the management screen.

Impact

An arbitrary script may be executed on the web browser of the user with the administrative privilege while accessing the website that uses MagazinegerZ.

Solution

Consider stop using MagazinegerZ v.1.01
Since the developer was unreachable, existence of any mitigations is unknown.