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CVE-2026-82901

CRITICAL 9.8 CVSS 3.1
Published
September 26, 2026
Last modified
September 28, 2026
NVD status
Deferred
Reported by
security@wordfence.com
Weakness
CWE-434
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to Arbitrary File Upload due to insufficient file type validation in the 'uacf7_wpcf7_mail_components' function in all versions up to, and including, 3.5.50. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: This is only exploitable when the plugin's PDF Generator module is enabled, which is disabled by default.

Affected WordPress components

  • Ultra Addons for Contact Form 7 Plugin · ultimate-addons-for-contact-form-7
    Confirmed match Active
    Up to and including 3.5.50
    View on WordPress.org

A confirmed match is backed by the plugin or theme slug. A possible match is based on the product name only and should be verified.

Affected products and versions

  • themefic Ultra Addons for Contact Form 7 — Up to and including 3.5.50

References

  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L608
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/pdf-generator/pdf-generator.php#L807
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L133
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L192
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/ultimate-addons-for-contact-form-7/tags/3.5.48/addons/signature/ultimate-signature.php#L300
  • plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset/3698232/ultimate-addons-for-contact-form-7
  • www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/872e1a05-aacc-44fa-93c1-8c3f7b2fb46d?source=cve
  • nvd.nist.gov Official NVD record