CVE-2026-1239
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 – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to unauthorized access of data due to a missing authorization check on the 'ninja-forms-views/token/refresh' REST callback in all versions up to, and including, 3.14.1. This makes it possible for unauthenticated attackers to view form submissions, which could potentially contain sensitive information.
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 WordPress plugin has a missing authorization check on the 'ninja-forms-views/token/refresh' REST API callback in versions up to 3.14.1. This broken access control allows unauthenticated attackers to directly access form submission data through the REST endpoint without any authentication or authorization validation.
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
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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.
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Confirm Ninja Forms plugin installation and versionIn WordPress admin, go to Plugins > Installed Plugins > locate Ninja Forms. The version number is displayed below the plugin name. Alternatively, check the plugin header in wp-content/plugins/ninja-forms/readme.txt or the main plugin file for the Version constant.Affected if The installed version is 3.14.1 or lower
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Identify the REST API endpoint exposureMake a GET request to your site's /wp-json/ninja-forms-views/token/refresh endpoint using a tool like curl or browser developer tools. Example: curl -s https://yourdomain.com/wp-json/ninja-forms-views/token/refreshAffected if The endpoint responds without requiring authentication (no 401 or 403 error returned)
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Test for unauthorized data accessSend a request to the vulnerable endpoint and examine if it returns form submission data, tokens, or other sensitive information without providing any authentication credentials.Affected if The endpoint returns actual data, tokens, or submission content without any auth headers or cookies
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Cross-reference version against vulnerability scopeCompare your confirmed installed version to the affected range: versions up to and including 3.14.1 are vulnerable. Version 3.14.2 contains the fix.Affected if Your installed version is 3.14.1 or earlier
You are affected if the Ninja Forms plugin version is 3.14.1 or earlier AND the /wp-json/ninja-forms-views/token/refresh endpoint is accessible without authentication.
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 · scopedUpdate to version 3.14.2 or later which should include proper authorization checks. If no patched version is available, disable the plugin or restrict access to the REST endpoint via web server configuration.
Upgrade to Ninja Forms version 3.14.2 or later
- Log in to the WordPress admin dashboard
- Navigate to Plugins > Installed Plugins
- Locate the Ninja Forms plugin
- Check the current version installed (ensure it is 3.14.1 or lower)
- If an update is available, click 'Update Now' to update to the latest version
- Alternatively, navigate to Dashboard > Updates and update the Ninja Forms plugin from there
- After updating, verify the version number reflects the patched release (3.14.2 or higher)
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing3.0 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 $1,936.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-1239 — 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-2026-1239 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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- 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