Vulnerability · Published Nov 18, 2025 · Assigned by CERT-PL

CVE-2025-59116User enumeration in Windu CMS

Medium 6.9

In plain English

A medium-severity security flaw in Windu CMS from JCD. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 82.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
JCD	Windu CMS	0 – through 4.1

Weakness: CWE-204 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

References

https://windu.org product
https://cert.pl/posts/2025/11/CVE-2025-59110 third-party-advisory