WordPress NextGEN Gallery Sell Photo plugin <= 1.0.4 - Authenticated Stored Cross-Site Scripting (XSS) vulnerability

Authenticated Stored Cross-Site Scripting XSS vulnerability found by Melbin K Mathew in WordPress NextGEN Gallery Sell Photo plugin versions = 1.0.4. Solution 2021-01-06 - we were unable to find a patched version of this plugin. Notification from WordPress.org - "This plugin has been closed as of...