CVE-2021-39310
The Real WYSIWYG WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of PHP_SELF in the ~/real-wysiwyg.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 0.0.2.
Date published : 2021-12-14
https://plugins.trac.wordpress.org/browser/real-wysiwyg/tags/0.0.2/real-wysiwyg.php#L213