What’s Vulnerable › Vulnerabilities

CVE-2026-93031: 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

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-18 · updated 2026-09-21
• Weakness: CWE-434

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

• _DeLeeuw_ Share-one-Drive | OneDrive & SharePoint plugin for WordPress: from 2.0 through 3.8.3
• _DeLeeuw_ WP Cloud Plugins - Box (Lets-Box): from 2.0 through 3.8.3
• _DeLeeuw_ WP Cloud Plugins - Dropbox (Out-of-the-Box): from 2.0 through 3.8.3
• WP Cloud Plugins/_deleeuw_ Use-your-Drive | Google Drive plugin for WordPress: from 2.0 through 3.8.3

References

• https://documentation.wpcloudplugins.com/other/changelog#id-3.9.0
• https://wpcloudplugins.gitbook.io/docs/other/changelog
• https://www.wordfence.com/threat-intel/vulnerabilities/id/a10ab4d6-318e-4dd6-9f81-ed25f181d074?source=cve

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