CVE-2026-5581criticalCWE-862

CVE-2026-5581: critical vulnerability in sh1zen Multi Uploader for Gravity Forms

Multi Uploader for Gravity Forms <= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion

Published

Follow this CVE+ Monitor Multi Uploader for Gravity Forms

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.1epss 0.7%
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Affected products
sh1zen · Multi Uploader for Gravity Forms
Related CVEs — sh1zen Multi Uploader for Gravity Forms

In the same product, most dangerous first.

CVE-2026-87796CRITICALMulti Uploader for Gravity Forms <= 1.1.9 - Unauthenticated Arbitrary File Upload via Chunked File UploadEPSS 1.1%CVE-2025-23921CRITICALWordPress Multi Uploader for Gravity Forms plugin <= 1.1.3 - Arbitrary File Upload vulnerabilityEPSS 0.5%CVE-2025-14344CRITICALMulti Uploader for Gravity Forms <= 1.1.7 - Unauthenticated Arbitrary File DeletionEPSS 0.5%