Ninja Forms File UploadsWordPress extension · Ninjaforms
CVE-2024-1596
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 Ninja Forms - File Uploads plugin for WordPress is vulnerable to Stored Cross-Site Scripting via an uploaded file (e.g. RTX file) in all versions up to, and including, 3.3.16 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
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 Ninja Forms File Uploads plugin for WordPress versions up to 3.3.16 suffers from a stored XSS vulnerability. Attackers can upload malicious files (such as RTX files) containing XSS payloads. Due to insufficient input sanitization and output escaping, the malicious scripts persist and execute when users access pages displaying the uploaded files.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
Ninja Forms File UploadsWordPress extension
< 3.3.18CVSS 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
- None
- User interaction
- Required
- Scope
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
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.
-
Confirm Ninja Forms File Uploads plugin is installedIn WordPress admin, go to Plugins > Installed Plugins and look for 'Ninja Forms File Uploads' in the list. Note the installed version number displayed next to the plugin name.Affected if The plugin is present and has a version number listed
-
Compare installed version to affected rangeIf the plugin is installed, compare the displayed version number to 3.3.18. The vulnerability affects versions before 3.3.18 (including 3.3.16 and below).Affected if Installed version is less than 3.3.18
-
Check if file upload forms existIn WordPress admin, go to Ninja Forms > Dashboard and review any forms that include a file upload field. Check the form builder for fields of type 'File Upload' or 'Single File Upload'.Affected if Active forms with file upload fields are present on the site
-
Inspect uploaded files for suspicious contentAccess the file uploads directory (typically wp-content/uploads/ninja-forms/) via FTP or file manager. Look for .rtx files or other unexpected file types that may contain script tags or encoded JavaScript payloads.Affected if Unexpected file types exist, particularly .rtx files or files containing <script> tags or javascript: URIs
A site is affected if the Ninja Forms File Uploads plugin version is below 3.3.18 AND file upload forms are actively collecting user submissions.
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.
dbcve · scoped3.3.18
Update Ninja Forms File Uploads plugin to the latest version to receive the patch. Until patched, consider disabling file upload forms or implementing additional file-type validation at the web application firewall level.
3.3.18
- Backup your WordPress site before making any changes
- Update the Ninja Forms File Uploads plugin to version 3.3.18 or later through the WordPress admin dashboard under Plugins > All Plugins > Ninja Forms File Uploads > Update Now
- Verify the update was successful by confirming the plugin version shows 3.3.18 or higher
- Test file upload functionality to ensure the plugin continues to work correctly after the update
Generated from the published advisory — verify against the referenced sources before acting.
Fix this in Ninja Forms File Uploads
Scoped from the published advisory
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-1596 — 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-2024-1596 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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