CVE-2025-66206 Frappe vulnerable to a path traversal allowing reading certain files

Medium 6.8 Published 1 Dec 2025 Updated 1 Dec 2025

Attackers can read arbitrary server files via path traversal in Frappe when using direct werkzeug/gunicorn setups without a reverse proxy.

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-2025-66206?

CVE-2025-66206 is a medium-severity path traversal vulnerability in frappe, published on 1 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Frappe is a full-stack web application framework. Prior to 15.86.0 and 14.99.2, certain requests were vulnerable to path traversal attacks, wherein some files from the server could be retrieved if the full path was known. Sites hosted on Frappe Cloud, and even other setups that are behind a reverse proxy like NGINX are unaffected. This would mainly affect someone directly using werkzeug/gunicorn. In those cases, either an upgrade or changing the setup to use a reverse proxy is recommended. This vulnerability is fixed in 15.86.0 and 14.99.2.

Weakness: CWE-22

Which versions are affected by CVE-2025-66206?

It affects 1 product.

Products include Frappe Frappe.

How do I fix CVE-2025-66206?

No fix has been published for CVE-2025-66206 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2025-66206 being exploited?

There is no known exploitation of CVE-2025-66206 in the wild and no public exploit code.

Sources

Also known as GHSA-v4wg-gqfr-rpjm.