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 'customfields[embedcode]' 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 subscriber-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. The sanitization bypass is possible because the savemetadata() handler returns early when $POST['posttype'] is absent — a condition always true during XML-RPC requests — and the plugin unconditionally grants Subscribers the publishaiovgvideos capability, making this exploitable by any authenticated user via a single wp.newPost XML-RPC call.

The All-in-One Video Gallery plugin for WordPress is vulnerable to Server-Side Request Forgery in all versions up to, and including, 4.8.5 via the 'vdl' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to make web requests to arbitrary locations originating from the web application and can be used to query and modify information from internal services. A Subscriber-level attacker can plant an internal or loopback URL in the mp4 post meta of a newly created aiovgvideos post via XML-RPC wp.newPost, then trigger the unauthenticated ?vdl=<postid> endpoint to force the server to fetch that URL and stream the full response body back to the requester.

The All-in-One Video Gallery plugin for WordPress is vulnerable to Local File Inclusion in all versions up to, and including, 3.6.5 via the aiovgsearchform shortcode. This makes it possible for authenticated attackers, with contributor-level access and above, to include and execute arbitrary files on the server, allowing the execution of any PHP code in those files. This can be used to bypass access controls, obtain sensitive data, or achieve code execution in cases where images and other “safe” file types can be uploaded and included.

The All-in-One Video Gallery plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the aiovgcreateattachmentfromexternalimageurl function in all versions up to, and including, 3.6.4. This makes it possible for authenticated attackers, with contributor access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.