WP 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

8.8
Unrestricted Upload of File with Dangerous Type
CVE CVE-2026-93031
CVSS 8.8 (High)
Publicly Published September 17, 2026
Last Updated September 18, 2026
Researcher WP Cloud Plugins - WP Cloud Plugins

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.

Learn more about Arbitrary File Upload vulnerabilities and how to prevent them.

References

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4 affected software packages

Software Type Plugin
Software Slug shareonedrive-onedrive-plugin-for-wordpress
Patched? Yes
Remediation Update to version 3.9.0, or a newer patched version
Affected Version
  • 2.0 - 3.8.3
Patched Version
  • 3.9.0
Software Type Plugin
Software Slug use-your-drive
Patched? Yes
Remediation Update to version 3.9.0, or a newer patched version
Affected Version
  • 2.0 - 3.8.3
Patched Version
  • 3.9.0
Software Type Plugin
Software Slug lets-box
Patched? Yes
Remediation Update to version 3.9.0, or a newer patched version
Affected Version
  • 2.0 - 3.8.3
Patched Version
  • 3.9.0
Software Type Plugin
Software Slug out-of-the-box
Patched? Yes
Remediation Update to version 3.9.0, or a newer patched version
Affected Version
  • 2.0 - 3.8.3
Patched Version
  • 3.9.0

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