An authenticated Stored XSS (Cross-site Scripting) exists in the "captive.cgi" Captive Portal via the "Title of Login Page" text box or "TI…

An authenticated Stored XSS (Cross-site Scripting) exists in the "captive.cgi" Captive Portal via the "Title of Login Page" text box or "TITLE" parameter in IPFire 2.21 (x86_64) - Core Update 130. It allows an authenticated WebGUI user with privileges to execute Stored Cross-site Scripting in the Captive Portal page.