During a security research I found an authenticated Stored XSS vulnerability.

The name of the plugin is: We’re Open! < 1.42

Description

The plugin does not sanitise and escape some of its settings, which could 
allow high privilege users such as admin to perform Stored Cross-Site Scripting 
attacks even when the unfiltered_html capability is 
disallowed (for example in multisite setup)

POC

The PoC will be displayed on October 12, 2022, to give 
users the time to update. 

Additional information

WPSCAN link: https://wpscan.com/vulnerability/11c89925-4fe9-45f7-9020-55fe7bbae3db

Plugin has more than 2,000+ active installations.