CVE-2026-5581 Multi Uploader for Gravity Forms <= 1.1.8 - Missing Authorization to Unauthenticated Arbitrary Media Deletion
Unauthenticated attackers can delete arbitrary WordPress media attachments due to missing capability checks in the Multi Uploader for Gravity Forms plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-5581?
CVE-2026-5581 is a critical missing authorization vulnerability in sh1zen Multi Uploader for Gravity Forms, published on 5 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-5581?
How do I fix CVE-2026-5581?
No fix has been published for CVE-2026-5581 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-5581 being exploited?
There is no known exploitation of CVE-2026-5581 in the wild and no public exploit code.
Sources
Also known as GHSA-56hx-w84f-pp3h.