CVE-2025-12775
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe WP Dropzone plugin for WordPress is vulnerable to authenticated arbitrary file upload in all versions up to, and including, 1.1.0 via the `ajax_upload_handle` function. This is due to the chunked upload functionality writing files directly to the uploads directory before any file type validation occurs. This makes it possible for authenticated attackers, with subscriber level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceThe WP Dropzone plugin for WordPress contains an arbitrary file upload vulnerability in the `ajax_upload_handle` function. The chunked upload mechanism writes files directly to the uploads directory before performing any file type validation, allowing authenticated users with subscriber-level access or higher to upload arbitrary files to the server.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify WP Dropzone plugin is installedLog in to WordPress admin panel and navigate to Plugins > Installed Plugins. Look for 'WP Dropzone' in the list of active plugins.Affected if WP Dropzone plugin is present and active in the WordPress installation.
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Check installed WP Dropzone versionIn the Plugins list, click on the plugin name or view details to display the installed version number. Compare this to version 1.1.0.Affected if The installed version is 1.1.0 or earlier, since the vulnerability exists in versions where the ajax_upload_handle function writes files before validation.
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Confirm subscriber-level users existNavigate to Users > All Users in WordPress admin. Review the list for any users assigned the 'Subscriber' role.Affected if There are users with Subscriber role, as these users can exploit the vulnerability with authenticated access.
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Inspect uploads directory for unexpected filesAccess the wp-content/uploads folder via FTP or file manager. Look for files with extensions such as .php, .phtml, .js, .exe, or other suspicious extensions that were not intentionally uploaded.Affected if Any unexpected or malicious file types are present in the uploads directory, indicating possible exploitation.
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Review server access logs for ajax_upload_handle requestsCheck web server access logs (Apache/Nginx) for POST requests to admin-ajax.php or direct endpoint calls containing 'ajax_upload_handle' and unusual file extensions.Affected if Log entries show requests to the vulnerable function with extensions other than intended file types (e.g., .php files).
A user is affected if the WP Dropzone plugin version is 1.1.0 or earlier, there are subscriber-level users on the site, and the ajax_upload_handle function can be accessed without additional validation.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpdate WP Dropzone to the latest patched version. If no patch is available, disable the plugin immediately and consider removing it. For interim protection, restrict file upload capabilities to administrator-level users only via WordPress role settings.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-12775 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-12775 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
- No spam, self-promotion, credentials, or personal data