Drag And Drop Multiple File Upload - Remote Code Execution (CVE-2023-5822)

Q: Am I affected by this vulnerability?

You are affected if your site runs Drag And Drop Multiple File Upload. No account is needed to exploit this, so a public site is reachable by anyone.

Q: How do I fix it?

Update Drag And Drop Multiple File Upload to the latest available version. Where the vendor has not yet published a fix, remove or disable the plugin until they do. Until you can update, Request / payload inspection (WAF) in Hack Halt ProSecure contains this class of attack at the request layer.

Q: What can an attacker actually do?

This is a Remote Code Execution flaw. An attacker who exploits it can run their own code on the server, which is total control of the site.

CVE-2023-5822

Vulnerability CVE-2023-5822 PLUGIN drag-and-drop-multiple-file-upload HIGH

The Drag and Drop Multiple File Upload - Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'dnd_upload_cf7_upload' function in versions up to, and including, 1.3.7.3. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if a user authorized to edit form, which means editor privileges or above, has added a 'multiple file upload' form field with '*' acceptable file types.

CVE-2023-5822

HIGH CVSS 8.1 Published 2023-11-22 Updated 2026-06-17

AI Risk High (87/100) Active Exploit: No strong signal Published Exploit: No public exploit references Priority: P2 Urgent

Severity Band HIGH

CVSS Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Components 1

Reference Links 5

AI Risk Engine High (87/100)

Exploitability Very High

Active Exploitation No strong signal

Published Exploit Status No public exploit references

Threat Timeline

2023-11-22 CVE published and first recorded in the threat feed.
2026-06-17 Record updated with latest vulnerability metadata.
2026-09-15 AI technical context refreshed for mitigation and impact guidance.
Now Monitoring for follow-up changes, linked references, and new related CVEs.

AI Context

Machine-generated threat intelligence

AI Updated 60 days ago

AI enriched 60 days ago (2026-09-15 01:00 UTC)

Technical Summary

Potential Impact

Severity is HIGH (CVSS 8.1). Depending on deployment context, affected components may be exposed to unauthorized actions or data integrity risk.

Exploitability Assessment

Exploitability is assessed as Very High based on remote code execution potential, low-bar exploit prerequisites.

Primary risk drivers: remote code execution potential, low-bar exploit prerequisites

Mitigation Recommendations

Validate affected product versions, prioritize patching, and monitor references for vendor remediation guidance. If immediate patching is not possible, apply compensating controls and limit exposure of vulnerable surfaces.

Detection & Monitoring

Track authentication anomalies, unexpected file writes, and suspicious plugin API activity around affected components.

Business Impact Lens

AI risk score 87/100 (High, Very High) with priority P2 Urgent. Prioritize remediation where affected components process customer data, admin sessions, or Internet-exposed workflows.

Affected Products

Drag And Drop Multiple File Upload PLUGIN · drag-and-drop-multiple-file-upload Affected: <= 1.3.7.3 Fixed version not specified

References

What to do about this

Patch immediately Serious, and reachable without meaningful privilege.

Fix it

Update Drag And Drop Multiple File Upload to the latest available version.

Where the vendor has not published a fix yet, disable the plugin until they do.

Cannot update today? Request / payload inspection (WAF) in Hack Halt ProSecure blocks this class of attack before WordPress processes the request.

Inspect request parameters and bodies for injection, traversal and file-inclusion payloads, and refuse the request rather than logging it.

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