This vulnerability in Deetronix Booking Ultra Pro (<= 1.1.20) involves improper neutralization of input during web page generation, leading to stored cross-site scripting (XSS). An attacker with high privileges can inject malicious scripts that are stored and later executed when viewed by users, potentially impacting confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, required privileges are high, user interaction is required, and the scope is changed. The vulnerability is publicly disclosed but no patch or vendor advisory is currently available.

Successful exploitation could allow an attacker with high privileges to inject and store malicious scripts that execute in the context of other users, potentially leading to limited confidentiality, integrity, and availability impacts. However, exploitation requires user interaction and high privileges, reducing the overall risk. There are no known active exploits in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, restrict high privilege access to trusted users only and apply input validation or output encoding workarounds if possible. Monitor vendor communications for updates on patches or official mitigations.