CVE-2025-59116 User enumeration in Windu CMS

Medium 6.9 Published 18 Nov 2025 Updated 5 Dec 2025

Attackers can enumerate valid user accounts via login response differences, facilitating targeted brute-force attacks against Windu CMS.

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-2025-59116?

CVE-2025-59116 is a medium-severity vulnerability in JCD Windu CMS, published on 18 Nov 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Windu CMS is vulnerable to User Enumeration. This issue occurs during logon, where a difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins.

Only version 4.1 was tested and confirmed as vulnerable. This issue was fixed in version 4.1 build 2250.

Weakness: CWE-204

Which versions are affected by CVE-2025-59116?

It affects 1 product.

Products include Windu Windu Cms.

How do I fix CVE-2025-59116?

No fix has been published for CVE-2025-59116 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-59116 being exploited?

There is no known exploitation of CVE-2025-59116 in the wild and no public exploit code.

Sources

Also known as GHSA-2ffw-h4mh-jjh5.