The WP BASE Booking plugin for WordPress, up to version 5.0.0, suffers from a Stored Cross-site Scripting vulnerability due to improper input neutralization during web page generation. This allows attackers to inject malicious scripts that persist on the site and execute when other users access the affected content. The CVSS 3.1 base score is 7.1, reflecting network attack vector, low attack complexity, no privileges required, user interaction required, scope change, and low impact on confidentiality, integrity, and availability.

Successful exploitation of this vulnerability can allow an attacker to execute arbitrary scripts in the context of users visiting the affected site, potentially leading to theft of user credentials, session hijacking, or other malicious actions impacting confidentiality, integrity, and availability to a limited extent. The CVSS score of 7.1 indicates a high severity but not critical.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fix or patch links are provided at this time. Until a patch is available, users should consider disabling or restricting access to the WP BASE Booking plugin to mitigate risk. Monitor vendor channels for updates and apply patches promptly once released.