The plugin does not sanitise or escape its "Logo Title" setting before outputting in a page, leading to a Stored Cross-Site Scripting issue. Furthermore, the plugin does not have CSRF check in place when saving its settings, allowing the issue to be exploited via a CSRF attack.
WordPress Blue Admin 21.06.01 Plugin - Cross-Site Request Forgery Vulnerability
WordPress Blue Admin 21.06.01 Cross Site Request Forgery
Blue Admin <= 21.06.01 - CSRF to Stored Cross-Site Scripting (XSS)