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9.8

Ultra Addons for Contact Form 7 allows unauthenticated file upload

CVE-2026-82901 · published 23 days ago
Summary

The Ultra Addons for Contact Form 7 plugin for WordPress can let anyone upload files to your server when its PDF Generator feature is turned on. This could let an attacker place malicious code on the site and potentially take control. Disable the PDF Generator module or update/remove the plugin until a fix is available.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
themefic ultra addons for contact form 7 <= 3.5.50
Original advisory text
Ultra Addons for Contact Form 7 <= 3.5.50 - Unauthenticated Arbitrary File Upload via Signature Form Field
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.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
1% chance of attack within 30 days
Type
CWE-434Unrestricted File Upload
Timeline
Published26 Sep 2026
Updated19 Oct 2026
First seen26 Sep 2026
Sources
CVE-2026-82901 · NVD
CVE-2026-82901 · MITRE
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