CVE-2026-67206 Wolf CMS 0.8.3.1 Authenticated RCE via FileManagerController File Upload

High 8.7 Published Updated

Authenticated attackers can upload malicious PHP files to execute arbitrary code on Wolf CMS installations.

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-2026-67206?

CVE-2026-67206 is a high-severity vulnerability in wolfcms, published on 30 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Wolf CMS through 0.8.3.1 contains a remote code execution vulnerability in FileManagerController that allows authenticated attackers to create arbitrary PHP files by exploiting missing file extension validation in the create_file() and save() functions. Attackers with the file_manager_mkfile capability can write malicious PHP content into the web-accessible FILES_DIR directory and trigger execution by requesting the file over HTTP.

Weakness: CWE-434

Which versions are affected by CVE-2026-67206?

How do I fix CVE-2026-67206?

No fix has been published for CVE-2026-67206 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-67206 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-67206 exists.

Public exploit code: 1 Exploit-DB entry and 1 proofs of concept on GitHub.

Sources

Also known as GHSA-3pqf-wrr6-rf9m.

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