This vulnerability in e4jvikwp's VikBooking Hotel Booking Engine & PMS involves improper neutralization of input during web page generation, resulting in a DOM-based Cross-site Scripting (XSS) issue. It affects all versions up to 1.8.9. 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, scope changed, and impacts on confidentiality, integrity, and availability at low levels. No patch or official remediation level has been published by the vendor as of the data provided.

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary scripts in the context of the affected application, potentially leading to partial compromise of confidentiality, integrity, and availability of the system. This could result in unauthorized actions performed on behalf of users or disclosure of sensitive information. However, no known exploits have been reported in the wild.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or remediation level is provided, users should monitor vendor communications for updates. Until a patch is available, consider applying input validation or output encoding controls where possible to mitigate DOM-based XSS risks.