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.
Scores
CVSS v3
7.5
EPSS
0.0004
EPSS Percentile
11.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-307
Status
published
Products (1)
windu/windu_cms
4.1
Published
Nov 18, 2025
Tracked Since
Feb 18, 2026