Vulnerability · Published Sep 18, 2026 · Assigned by Wordfence
CVE-2026-93031WP Cloud Plugins Use-your-Drive, Out-of-the-Box, Share-one-Drive, and Lets-Box <= 3.8.3 - Authenticated (Subscriber+) Arbitrary File Upload via Media Import
High 8.8
In plain English
A high-severity unrestricted file upload in Share-one-Drive | OneDrive & SharePoint plugin for WordPress from _DeLeeuw_. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 48% of all known vulnerabilities).
Official description
The WP Cloud Plugins Use-your-Drive, Out-of-the-Box, Share-one-Drive, and Lets-Box plugins for WordPress are vulnerable to Arbitrary File Upload in all versions from 2.0 up to, and including, 3.8.3 via the download_file_to_uploads function. This is due to the import action being registered for unauthenticated users via wp_ajax_nopriv_, a missing capability check in can_import(), and the imported file's extension and contents not being validated against get_allowed_mime_types() before it is written to the uploads directory. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| WP Cloud Plugins/_deleeuw_ | Use-your-Drive | Google Drive plugin for WordPress | 2.0 – through 3.8.3 |
| _DeLeeuw_ | Share-one-Drive | OneDrive & SharePoint plugin for WordPress | 2.0 – through 3.8.3 |
| _DeLeeuw_ | WP Cloud Plugins - Box (Lets-Box) | 2.0 – through 3.8.3 |
| _DeLeeuw_ | WP Cloud Plugins - Dropbox (Out-of-the-Box) | 2.0 – through 3.8.3 |
Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H