Critical 9.1Published Aug 5, 2026

CVE-2026-5581Multi Uploader for Gravity Forms <= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion

Updated under an hour ago (Oct 27, 2026, 12:30 AM ET)

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It affects sh1zen Multi Uploader for Gravity Forms. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for sh1zen Multi Uploader for Gravity Forms

Exploited in the last 30 days

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: 9.1 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Wordfence
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

sh1zen Multi Uploader for Gravity Forms sh1zen:multi_uploader_for_gravity_forms (from the name)	through 1.1.8	CNA record

References

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/16dca898-1a98-4e0b-8f48-dc01ba2dc4e6?source=cve
https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/inc/GFMUHandlePluploader.class.php#L66
https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/inc/GFMUHandlePluploader.class.php#L66
https://plugins.trac.wordpress.org/browser/gf-multi-uploader/tags/1.1.8/GFMUAddon.class.php#L131
https://plugins.trac.wordpress.org/browser/gf-multi-uploader/trunk/GFMUAddon.class.php#L131
https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3501985%40gf-multi-uploader%2Ftrunk&old=3421317%40gf-multi-uploader%2Ftrunk&sfp_email=&sfph_mail=

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.