Description
WordPress Plugin Booking Calendar is prone to multiple vulnerabilities, including cross-site scripting and SQL injection vulnerabilities because it fails to properly sanitize user-supplied input. An attacker may leverage these issues to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site, to steal cookie-based authentication credentials, to compromise the application, access or modify data or to exploit vulnerabilities in the underlying database. WordPress Plugin Booking Calendar version 6.2 is vulnerable; prior versions may also be affected.
Remediation
Update to plugin version 6.2.1 or latest
References
https://www.exploit-db.com/exploits/40189/
https://packetstormsecurity.com/files/138125/WordPress-Booking-Calendar-6.2-SQL-Injection.html