# 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.

- **Severity:** High 8.5 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 19 Aug 2026
- **Updated:** 19 Aug 2026
- **Also known as:** GHSA-4jwf-f8xx-qhcx

## 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.

## 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:

- WordPress Advanced File Manager < 5.4.13 - Arbitrary File Read (nuclei): http/cves/2026/CVE-2026-11565.yaml

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-11565 and fix it if it is affected.

What it is: 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.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-11565 exists.

Affected product: Unknown Advanced File Manager. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-11565/ (Markdown: https://insights.sbomify.com/CVE-2026-11565/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-11565
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-11565
- OSV: https://osv.dev/vulnerability/CVE-2026-11565

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-11565/
Summaries are generated and may contain mistakes; the official description above is the record.