Bugfixes:
1. The7 Slides are now translatable with WPML.
2. Added the required second argument to the 'get_the_excerpt' filter.
3. Fixed the fatal error: Uncaught TypeError caused by array_key_exists().
4. Addressed the XSS vulnerability in the legacy "DT Flickr" widget (by removing it). Please note that this was only a theoretical threat, as exploiting it required a bad actor to already have admin access.