CVE-2026-5581
Received Received - Intake

Unauthorized Arbitrary Media Deletion in Multi Uploader for Gravity Forms

Publication date: 2026-08-05

Last updated on: 2026-08-05

Assigner: Wordfence

Description
The Multi Uploader for Gravity Forms plugin for WordPress is vulnerable to unauthorized arbitrary media deletion in all versions up to, and including, 1.1.8. This is due to missing capability checks in the `plupload_ajax_delete_file()` function, which is registered via `wp_ajax_nopriv_gfmu_delete_file`. The nonce intended for CSRF protection is exposed on any public-facing page containing a multi-uploader form field via the `GFMU_options` JavaScript object. This makes it possible for unauthenticated attackers to permanently delete any WordPress media attachment by supplying its attachment ID, potentially leading to complete media library destruction.

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Meta Information

Published
2026-08-05
Last Modified
2026-08-05
Generated
2026-08-05
AI Q&A
2026-08-05
EPSS Evaluated
N/A
NVD
CVE-2026-5581
EUVD
EUVD-2026-53170

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
gravity_forms multi_uploader to 1.1.8 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-862 The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

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Executive Summary

This vulnerability in the Multi Uploader for Gravity Forms WordPress plugin allows unauthenticated attackers to delete any media file in the WordPress media library by exploiting missing capability checks and exposed nonces. The flaw exists in versions up to 1.1.8.

Detection Guidance

Check for unauthorized media deletions in WordPress logs or audit trails. Look for requests to /wp-admin/admin-ajax.php with action=gfmu_delete_file and no valid nonce. Inspect network traffic for exposed GFMU_options in page source on public pages.

Impact Analysis

An attacker could permanently delete all media files in your WordPress site, leading to loss of images, documents, and other media. This could disrupt website functionality, break content, and require recovery from backups.

Compliance Impact

This vulnerability could lead to unauthorized deletion of media files, potentially violating data integrity requirements in GDPR and HIPAA. Unauthorized access to delete files may result in non-compliance with record-keeping and data protection obligations.

Mitigation Strategies

Update the Multi Uploader for Gravity Forms plugin to the latest version. If an update is unavailable, disable the plugin immediately. Implement strict file deletion permissions and monitor media library for unauthorized changes.

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