CVE-2026-6802 in Easy Upload Files During Checkout Plugin
Summary
by MITRE • 07/10/2026
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.
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Analysis
by VulDB Data Team • 07/10/2026
The Easy Upload Files During Checkout plugin for WordPress presents a critical authorization vulnerability that compromises the integrity of WordPress media libraries across all versions up to and including 3.0.1. This flaw resides within the ufdc_custom_init() function where the 'eufdc-delete' parameter is processed without proper security validation mechanisms. The absence of nonce verification creates an attack surface where malicious actors can exploit this weakness to execute unauthorized deletion operations against media attachments. This vulnerability directly violates fundamental security principles that govern WordPress plugin development and represents a clear failure in input sanitization and access control implementation.
The technical exploitation of this vulnerability occurs through the manipulation of the eufdc-delete parameter within the ufdc_custom_init() function, which lacks essential authorization checks including capability verification and attachment ownership validation. Attackers can leverage this weakness to permanently remove arbitrary files from the WordPress media library without requiring authentication credentials or administrative privileges. The vulnerability stems from the plugin's failure to implement proper access control measures that should be enforced before any file deletion operations are permitted. This flaw aligns with CWE-863, which addresses "Incorrect Authorization" in software systems, specifically targeting scenarios where insufficient authorization checks allow unauthorized actions against system resources.
The operational impact of this vulnerability extends beyond simple data loss to encompass potential business disruption and reputational damage for affected WordPress sites. Unauthenticated attackers can systematically delete media files including images, documents, and other attachments that may be critical to site operations or customer experience. The permanent nature of these deletions means that recovery efforts require either manual restoration from backups or complete plugin removal and reinstallation. This vulnerability particularly affects e-commerce sites where media content plays a crucial role in product presentations and customer engagement, potentially leading to significant financial losses.
Security mitigation strategies for this vulnerability should prioritize immediate plugin updates to versions that address the authorization flaw, though users must verify that patches properly implement nonce verification and capability checks. Organizations should conduct comprehensive audits of their WordPress installations to identify other plugins that may exhibit similar authorization weaknesses through the ATT&CK framework's T1078 technique for valid accounts or T1486 for data encryption for ransom. Network-level monitoring should be enhanced to detect unusual file deletion patterns, while implementing proper access control measures including role-based permissions and two-factor authentication for administrative access. Additionally, regular security assessments of WordPress plugins should include verification of nonce implementation and capability validation mechanisms to prevent similar vulnerabilities from being introduced into production environments.