CVE-2021-38332
The On Page SEO + Whatsapp Chat Button Plugin WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to a reflected $_SERVER["PHP_SELF"] value in the ~/settings.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 1.0.1.
Date published : 2021-09-10
https://plugins.trac.wordpress.org/browser/ops-robots-txt/tags/1.0.0/settings.php#L175