The Photo Engine (Media Organizer & Lightroom) WordPress plugin before 6.5.8 does not sanitise and escape collection and gallery names before storing them and outputting them in an administrative dashboard, allowing authenticated users with the author role and above to perform Stored Cross-Site Scripting attacks.
https://wpscan.com/vulnerability/b1b9a655-6a1b-43d9-99ba-7734107465d6/