Knight Squad Academy
Vulnerability advisory

CVE-2026-6802

Research by Md. Moniruzzaman Prodhan July 10, 2026
Overview

Summary

The Easy Upload Files During Checkout plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 3.0.1. This is due to missing authorization checks in the ufdc_custom_init() function, which processes the 'eufdc-delete' parameter without any nonce verification, capability check, or attachment ownership validation. This makes it possible for unauthenticated attackers to permanently delete arbitrary media library attachments from the WordPress site.

Risk profile

CVSS assessment

5.3 · M E D I U M
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
N E T W O R K
Complexity
L O W
Privileges
N O N E
User interaction
N O N E
Scope
U N C H A N G E D
Confidentiality
N O N E
Integrity
L O W
Availability
N O N E
Classification

Weaknesses

  • Authorization Bypass Through User-Controlled Key CWE-639
Further reading

References

8 sources
  1. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/tags/3.0.1/inc/functions.php#L195
  2. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/tags/3.0.1/inc/functions.php#L561
  3. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/tags/3.0.1/inc/functions.php#L587
  4. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/trunk/inc/functions.php#L195
  5. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/trunk/inc/functions.php#L561
  6. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/browser/easy-upload-files-during-checkout/trunk/inc/functions.php#L587
  7. plugins.trac.wordpress.org https://plugins.trac.wordpress.org/changeset?reponame=&old=3522887%40easy-upload-files-during-checkout&new=3522887%40easy-upload-files-during-checkout
  8. www.wordfence.com https://www.wordfence.com/threat-intel/vulnerabilities/id/5727bc4e-ee92-4913-bc8f-3d002488b383?source=cve