Stored XSS in Windu CMS

Windu CMS is vulnerable to Stored Cross-Site Scripting (XSS) in the logon page where input data has no proper validation. Malicious attacker can inject arbitrary HTML and JS into website, which will be rendered/executed when visiting logs page by admin. Only version 4.1 was tested and confirmed as vulnerable. This issue was fixed in version 4.1 build 2250.