CVE-2026-6802 Overview
CVE-2026-6802 is a missing authorization vulnerability [CWE-639] in the Easy Upload Files During Checkout plugin for WordPress. The flaw affects all plugin versions up to and including 3.0.1. The ufdc_custom_init() function processes the eufdc-delete parameter without any nonce verification, capability check, or attachment ownership validation. Unauthenticated attackers can permanently delete arbitrary media library attachments from a WordPress site by supplying attachment identifiers to the vulnerable endpoint.
Critical Impact
Unauthenticated attackers can permanently delete arbitrary media library attachments, causing content loss and broken site functionality across affected WordPress installations.
Affected Products
- Easy Upload Files During Checkout plugin for WordPress (all versions ≤ 3.0.1)
- WordPress installations with the vulnerable plugin activated
- Media library assets managed by affected WordPress sites
Discovery Timeline
- 2026-07-10 - CVE-2026-6802 published to NVD
- 2026-07-10 - Last updated in NVD database
Technical Details for CVE-2026-6802
Vulnerability Analysis
The vulnerability resides in the ufdc_custom_init() function of the Easy Upload Files During Checkout plugin. This function hooks into WordPress initialization and inspects incoming requests for the eufdc-delete parameter. When the parameter is present, the function directly triggers deletion of the referenced media attachment.
The function omits three critical security controls. It does not verify a WordPress nonce to confirm request intent. It does not check user capabilities such as delete_post or manage_options. It does not validate that the requester owns the target attachment. Any visitor to the site can invoke the deletion routine.
Because the handler runs on init, the endpoint is reachable on public pages without authentication. Attackers can enumerate attachment IDs sequentially and issue deletion requests, removing images, documents, and other uploaded media referenced across the site.
Root Cause
The root cause is missing authorization enforcement on a state-changing action, classified under CWE-639 (Authorization Bypass Through User-Controlled Key). The plugin trusts a user-supplied identifier in eufdc-delete to select the target object and executes the destructive operation without confirming permission.
Attack Vector
Exploitation requires only a single HTTP request to any page that triggers the plugin's init handler. The attacker supplies the target attachment ID through the eufdc-delete parameter. No authentication, session, or user interaction is required. The vulnerability produces integrity impact through arbitrary media deletion but does not disclose data or crash the server.
Refer to the Wordfence Vulnerability Analysis and the plugin source at functions.php line 195 for the vulnerable code path.
Detection Methods for CVE-2026-6802
Indicators of Compromise
- HTTP requests to any site URL containing the eufdc-delete query parameter from unauthenticated sources.
- Unexpected entries in WordPress logs showing media attachments deleted without an associated administrator session.
- Broken image or file references appearing across posts, pages, and WooCommerce order records.
- Web server access logs with requests to front-end pages carrying attachment ID values in eufdc-delete.
Detection Strategies
- Monitor web server and WAF logs for the eufdc-delete parameter regardless of the request path.
- Alert on WordPress delete_attachment action fires that originate from unauthenticated request contexts.
- Compare the media library inventory against known-good backups to identify unauthorized deletions.
Monitoring Recommendations
- Enable WordPress activity logging to capture attachment deletion events with source IP and user context.
- Forward web server logs to a centralized SIEM and build detections for the eufdc-delete parameter pattern.
- Track sudden spikes in attachment deletion volume across short time windows as a probable exploitation signal.
How to Mitigate CVE-2026-6802
Immediate Actions Required
- Deactivate the Easy Upload Files During Checkout plugin until a patched release is installed and verified.
- Restore any deleted media assets from the most recent verified backup.
- Deploy a WAF rule that blocks requests containing the eufdc-delete parameter from unauthenticated clients.
Patch Information
A fix is tracked in the WordPress plugin changeset 3522887. Site operators should upgrade to a plugin release that includes changeset 3522887 or later, which introduces the required authorization checks around the deletion handler.
Workarounds
- Restrict access to the WordPress checkout and front-end pages behind authentication where business requirements allow.
- Add a server-side rule (for example in Nginx or Apache) that rejects requests containing the eufdc-delete parameter until the patch is applied.
- Take an offline snapshot of the wp-content/uploads directory and the WordPress database before attempting remediation.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
