Formidable Form BuilderWordPress extension · Strategy11

CVE-2023-24419

HIGH · 8.8 CVSS v3.1 Published 2023-02-28
Fix available
A fix is available. Upgrade to 5.5.7 or later.
See remediation →
95/100
Remediation priority · Urgent
Remotely reachable No privileges

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 · unedited
Cross-Site Request Forgery (CSRF) vulnerability in Strategy11 Form Builder Team Formidable Forms plugin <= 5.5.6 versions.

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 · moderate confidence

Cross-Site Request Forgery (CSRF) vulnerability in the Formidable Forms WordPress plugin (versions <= 5.5.6) allows attackers to trick authenticated users into performing unintended actions by sending malicious requests. The lack of proper anti-CSRF token validation on sensitive operations enables attackers to execute commands on behalf of legitimate users.

MitigationUpdate Formidable Forms plugin to a version newer than 5.5.6 which should contain proper anti-CSRF token validation. Until then, consider disabling the plugin or implementing additional server-side CSRF protections.

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
Formidable Form BuilderWordPress extension
Affected:< 5.5.7

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 checks

Work through these to decide whether this CVE applies to you.

  1. Locate the Formidable Forms plugin version
    In WordPress admin, go to Plugins > Installed Plugins and find the Strategy11 Formidable Form Builder plugin. The version number is displayed below the plugin name.
    Affected if The version listed is 5.5.6 or lower (any version < 5.5.7)
  2. Verify version via plugins directory
    Check the wp-content/plugins/formidable folder for a readme.txt or plugin header file containing the version number, or query the WordPress database wp_options table for the option_name containing 'formidable' and 'version'.
    Affected if The retrieved version number is less than 5.5.7
  3. Confirm plugin is active
    In WordPress admin under Plugins > Installed Plugins, verify that Formidable Forms shows as 'Active' rather than 'Inactive' or 'Must Use'.
    Affected if The plugin is active and version is < 5.5.7

You are affected if the Formidable Forms plugin is installed and active with any version prior to 5.5.7, as the vulnerable code lacking proper anti-CSRF token validation is present in those versions.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 5.5.7 or later
Fixed in 5.5.7
Interim mitigation

Update Formidable Forms plugin to a version newer than 5.5.6 which should contain proper anti-CSRF token validation. Until then, consider disabling the plugin or implementing additional server-side CSRF protections.

Recommended fix High confidence

5.5.7 or later

  1. Backup your WordPress site and database before updating
  2. Navigate to Dashboard > Updates in WordPress admin, or go to Plugins > Installed Plugins
  3. Locate 'Formidable Forms' in the plugins list
  4. Click 'Update Now' to upgrade to version 5.5.7 or later
  5. Alternatively, download version 5.5.7 from wordpress.org and upload via Plugins > Add New > Upload Plugin
  6. Verify the update was successful by checking the plugin version in Plugins > Installed Plugins
Caveat Review the plugin changelog for any breaking changes before upgrading

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Formidable Form Builder Scoped from the published advisory
  • Consultation4.0 h
  • Implementation12.0 h
  • Testing6.0 h
  • Review / QA3.0 h
25.0 hours of engineering $4,400
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $7,040.

Scan for this in your stack

Free · runs locally
dbcve dependency scanner

Check whether your project pulls in CVE-2023-24419 — 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 sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-24419 in production — separate from our analysis above.

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.

What this is

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.

What belongs here
  • 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