The Asgaros Forum WordPress plugin before 1.15.13 does not validate and escape user input when subscribing to a topic before using it in a SQL statement, leading to an unauthenticated SQL injection issue
https://wpscan.com/vulnerability/36cc5151-1d5e-4874-bcec-3b6326235db1
https://plugins.trac.wordpress.org/changeset/2611560/asgaros-forum