CVE-2026-11565 Advanced File Manager < 5.4.13 - Authenticated Arbitrary File Read and Write via fma_load_fma_ui
Authenticated users with low privileges can read arbitrary files and overwrite non-PHP files due to missing capability checks in the Advanced File Manager plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-11565?
CVE-2026-11565 is a high-severity missing authorization vulnerability in Unknown Advanced File Manager, published on 19 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The Advanced File Manager WordPress plugin before 5.4.13 does not perform capability checks in several of its file management AJAX actions, allowing users with any role to which an administrator has granted file-manager access (as low as Subscriber) to read arbitrary files on the server — including sensitive configuration files — and to overwrite existing non-PHP files, which can be leveraged to compromise administrator accounts and the whole site.
Which versions are affected by CVE-2026-11565?
How do I fix CVE-2026-11565?
No fix has been published for CVE-2026-11565 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-2026-11565 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11565 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-4jwf-f8xx-qhcx.