CVE-2026-11392 is a reflected cross-site scripting vulnerability in the WP Hotel Booking WordPress plugin by thimpress. It affects all versions up to 2.3.1 and is caused by improper neutralization of input during web page generation, specifically in the 'check_in_date' and 'check_out_date' parameters. This allows unauthenticated attackers to inject malicious scripts that execute in the context of a victim's browser if they are tricked into clicking a crafted link. The vulnerability has a CVSS 3.1 base score of 6.1, with network attack vector, low attack complexity, no privileges required, user interaction required, and partial impact on confidentiality and integrity.

Successful exploitation can lead to execution of arbitrary scripts in the victim's browser, potentially allowing theft of sensitive information or session tokens, and manipulation of web content. The vulnerability does not impact availability. The attacker does not require authentication but does require user interaction (clicking a crafted link).

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should avoid clicking on suspicious links containing manipulated 'check_in_date' or 'check_out_date' parameters. Monitoring vendor channels for updates is recommended.