The All-in-One Video Gallery – Video Player & Galleries for YouTube, Vimeo & Self-Hosted Videos plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'morelink' parameter in all versions up to, and including, 4.9.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

The All-in-One Video Gallery plugin for WordPress is vulnerable to arbitrary file downloads and blind server-side request forgery via the 'dl' parameter found in the ~/public/video.php file in versions up to, and including 2.6.0. This makes it possible for unauthenticated users to download sensitive files hosted on the affected server and forge requests to the server.

The All-in-One Video Gallery WordPress plugin before 2.5.0 does not sanitise and validate the tab parameter before using it in a require statement in the admin dashboard, leading to a Local File Inclusion issue