The User Private Files – File Upload & Download Manager with Secure File Sharing plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘new-fldr-name’ parameter in all versions up to, and including, 2.1.3 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 User Private Files – WordPress File Sharing Plugin plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.1.0 via the 'dpk_upvf_update_doc' due to missing validation on the 'docid' user controlled key. This makes it possible for authenticated attackers, with subscriber-level access and above, to gain access to other user's private files.

The Frontend File Manager & Sharing WordPress plugin before 1.1.3 does not filter file extensions when letting users upload files on the server, which may lead to malicious code being uploaded.