# CVE-2026-93031: File upload in Share-one-Drive | OneDrive & SharePoint plugin for WordPress

> Authenticated subscribers can upload executable files via media import, leading to remote code execution on WordPress sites using affected cloud storage plugins.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 18 Sep 2026
- **Updated:** 19 Sep 2026
- **Also known as:** GHSA-v278-3mjv-f38g

## What is CVE-2026-93031?

CVE-2026-93031 is a high-severity vulnerability in WP Cloud Plugins/_deleeuw_ Share-one-Drive | OneDrive & SharePoint plugin for WordPress, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### 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.

Weakness: CWE-434 (Unrestricted Upload of File with Dangerous Type)

## Which versions are affected by CVE-2026-93031?


## How do I fix CVE-2026-93031?

No fix has been published for CVE-2026-93031 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-93031 being exploited?

There is no known exploitation of CVE-2026-93031 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-93031 and fix it if it is affected.

What it is: CVE-2026-93031 is a high-severity vulnerability in WP Cloud Plugins/_deleeuw_ Share-one-Drive | OneDrive & SharePoint plugin for WordPress, published on 18 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-93031 in the wild and no public exploit code.

Affected product: WP Cloud Plugins/_deleeuw_ Share-one-Drive | OneDrive & SharePoint plugin for WordPress. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-93031/ (Markdown: https://insights.sbomify.com/CVE-2026-93031/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-93031
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-93031
- OSV: https://osv.dev/vulnerability/CVE-2026-93031

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-93031/
Summaries are generated and may contain mistakes; the official description above is the record.