This vulnerability in EZiHosting Tennis Court Bookings (<= 1.2.7) is a reflected Cross-site Scripting (XSS) flaw caused by improper neutralization of input during web page generation. It allows an attacker to inject malicious scripts that execute when a user interacts with a crafted link or input, potentially leading to unauthorized actions or data exposure within the affected web application. The CVSS 3.1 base score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts on confidentiality, integrity, and availability.

Successful exploitation can lead to execution of arbitrary scripts in the victim's browser, potentially resulting in partial compromise of confidentiality, integrity, and availability of the affected application or user data. The reflected nature means the attack requires user interaction, such as clicking a malicious link. There are no reports of active exploitation in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should exercise caution with untrusted input and links related to the Tennis Court Bookings application. No official patch or workaround information is currently provided.