The Security Plugin, Firewall & Malware Scanner with Auto Removal WordPress plugin before 2.191...

The Security Plugin, Firewall & Malware Scanner with Auto Removal WordPress plugin before 2.191 does not restrict its File System Watcher file viewer to Super Admins or to the files it legitimately tracks, allowing a non-super-admin administrator, including a subsite administrator on WordPress multisite, to read the contents of sensitive tracked files such as the main configuration file and disclose the site's authentication keys, salts and, on a standard install, database credentials.