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Generate Pdf Using Contact Form 7WordPress extension · Zealousweb

CVE-2024-6316

HIGH · 8.8 CVSS v3.1 Published 2024-07-09
Fix available
A fix is available. Upgrade to 4.1.3 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
The Generate PDF using Contact Form 7 plugin for WordPress is vulnerable to Cross-Site Request Forgery to Arbitrary File Upload in versions up to, and including, 4.1.2. This is due to missing nonce validation and missing file type validation in the 'wp_cf7_pdf_dashboard_html_page' function. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link. CVE-2024-37555 is a duplicate of this issue.

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 confidence

The Generate PDF using Contact Form 7 WordPress plugin has a CSRF-to-Arbitrary File Upload vulnerability in the wp_cf7_pdf_dashboard_html_page function. The function lacks nonce validation (allowing forged requests) and file type validation (allowing any file extension), enabling unauthenticated attackers to upload malicious files via tricking an administrator into clicking a crafted link.

MitigationUpdate to the latest plugin version when available; otherwise implement nonce validation on the affected function, add strict file type/mime validation with allowlist, and verify file contents before allowing storage.

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
Generate Pdf Using Contact Form 7WordPress extension
Affected:< 4.1.3

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. Confirm plugin is installed
    In WordPress admin, go to Plugins > Installed Plugins and look for 'Generate Pdf Using Contact Form 7' by Zealousweb. Note the installed version number.
    Affected if The plugin is installed and the version shown is below 4.1.3 (e.g., 4.1.2, 4.1.1, etc.)
  2. Verify plugin version via filesystem
    Check the plugin main file (wp-content/plugins/generate-pdf-using-contact-form-7/generate-pdf-using-contact-form-7.php) for the Version header comment, or query the WordPress database plugins table for the plugin version.
    Affected if The version retrieved is less than 4.1.3
  3. Check if admin dashboard upload feature exists
    Access the plugin settings page in WordPress admin (typically under Contact > PDF Settings or a dedicated Generate PDF menu). Look for any file upload, import, or dashboard HTML functionality.
    Affected if The plugin admin interface with upload/import capabilities is accessible and the plugin version is below 4.1.3
  4. Inspect plugin source for nonce validation
    Examine the plugin PHP files for the function 'wp_cf7_pdf_dashboard_html_page' and check if it includes nonce verification using wp_verify_nonce or check_admin_referer before processing requests.
    Affected if The function exists in the plugin code without nonce validation checks and the version is below 4.1.3
  5. Inspect plugin source for file type validation
    Review the same function for file type or mime type validation (e.g., using wp_check_filetype, checking $_FILES type, or an allowlist).
    Affected if The function allows file uploads without proper file type/mime validation and the version is below 4.1.3

If the Zealousweb Generate Pdf Using Contact Form 7 plugin is installed with a version lower than 4.1.3, the vulnerable function lacks both nonce and file type validation, meaning the environment is affected by CVE-2024-6316.

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 4.1.3 or later
Fixed in 4.1.3
Interim mitigation

Update to the latest plugin version when available; otherwise implement nonce validation on the affected function, add strict file type/mime validation with allowlist, and verify file contents before allowing storage.

Recommended fix High confidence

4.1.3

  1. Backup your WordPress site before making any changes
  2. Navigate to Plugins > Installed Plugins in the WordPress admin dashboard
  3. Locate 'Generate PDF using Contact Form 7' in the plugin list
  4. Click 'Update now' if an update is available, or manually update to version 4.1.3 or later
  5. Verify the plugin version shows 4.1.3 or higher after updating
  6. Test that the Contact Form 7 PDF generation functionality works correctly

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

Fix this in Generate Pdf Using Contact Form 7 Scoped from the published advisory
  • Consultation3.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
12.0 hours of engineering $2,130
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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-2024-6316 in production — separate from our analysis above.

No notes yet

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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