This module allows you to manage video media items using the COOKiES module (disabling external video elements). These elements will be enabled again, once the COOKiES banner is accepted.
The module doesn't sufficiently check whether to convert "data-src" attributes to "src" when their value might contain malicious content under the scenario, that module specific classes are set on the HTML element.
This vulnerability is mitigated by the fact that an attacker must have the correct permissions to have a specific HTML element display for all users, and this HTML element needs to have a specific class set.