CVE-2026-9815 MagicForm <= 0.1.3 - Unauthenticated Arbitrary File Upload to RCE
Unauthenticated attackers can upload PHP files and execute arbitrary code if the form's extension allowlist is empty.
- 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-2026-9815?
CVE-2026-9815 is a medium-severity vulnerability in Unknown MagicForm, published on 18 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The MagicForm WordPress plugin through 0.1.3 does not properly validate the type of files uploaded through an unauthenticated AJAX action when a form's per-field extension allowlist is left empty, allowing unauthenticated attackers to upload PHP files and execute arbitrary code on the server.
Which versions are affected by CVE-2026-9815?
How do I fix CVE-2026-9815?
No fix has been published for CVE-2026-9815 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-9815 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9815 exists.
Sources
Also known as GHSA-v7h3-h25c-vhc5.