Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
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-4dd6-9f8
FAQ
What is CVE-2026-93031?
CVE-2026-93031 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 vi...
How severe is CVE-2026-93031?
CVE-2026-93031 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-93031?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.