CVE-2025-12775Network attack vector

Authenticated file upload via pre-validation chunk writes

Published Nov 18, 2025 · Updated Nov 18, 2025

Arbitrary file upload in Nazmul Sabuz WP Dropzone 1.1.0 and earlier allows remote authenticated users to write dangerous files to the server. The ajax_upload_handle function writes upload chunks into the WordPress uploads directory before validating their file types. Subscriber-level access is sufficient; code execution requires the web server to execute the uploaded file type.

CVSS severity8.8
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Arbitrary file upload in Nazmul Sabuz WP Dropzone 1.1.0 and earlier allows remote authenticated users to write dangerous files to the server. The ajax_upload_handle function writes upload chunks into the WordPress uploads directory before validating their file types. Subscriber-level access is sufficient; code execution requires the web server to execute the uploaded file type.

The record

CVE
CVE-2025-12775
Published
Nov 18, 2025
Updated
Nov 18, 2025
Vendor
Nazmul Sabuz
Product
WP Dropzone
Classifications
CWE-434, T1105, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 18, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=* <=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nazmul Sabuz · WP Dropzoneversion=* <=1.1.0

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo