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

CVE-2025-59113Bruteforce Protection Bypass 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 23% of all known vulnerabilities).

Severity (CVSS 4.0)6.9Medium

Exploit odds (30 days)0.3%top 77.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Windu CMS implements weak client-side brute-force protection by using parameter loginError. Information about attempt count or timeout is not stored on the server, which allows a malicious attacker to bypass this brute-force protection by resetting this parameter. 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-307 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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