CVE-2026-28166

An unauthenticated Cross Site Scripting (XSS) vulnerability exists in Tourmaster versions 5.4.9 and earlier, allowing attackers to inject malicious scripts into web pages viewed by users. This could lead to session hijacking, data theft, or defacement of the website. Organizations using affected versions of Tourmaster should prioritize patching this vulnerability to protect their users and maintain the integrity of their web applications.