FV Player < 7.5.57.7212 - Unauthenticated Stored XSS via Comment Popup

Description

The plugin does not escape shortcode attribute values embedded in comments before rendering them into the media player markup, allowing an unauthenticated visitor to store a script payload in a comment that executes in the session of any visitor, including an administrator, who plays the commented video, when the non-default comment-shortcode-parsing setting is enabled.