CVE-2025-12166: Simply Schedule Appointments <= 1.6.9.9 - Unauthenticated SQL Injection via `order` and `append_where_sql` Parameters
The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to blind SQL Injection via the order and appendwheresql parameters in all versions up to, and including, 1.6.9.9 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-12166?
CVE-2025-12166 is classified as a high severity vulnerability due to its potential to allow unauthenticated SQL injection.
How do I fix CVE-2025-12166?
To fix CVE-2025-12166, update the Simply Schedule Appointments plugin to version 1.6.10 or later.
What is the impact of CVE-2025-12166 on my WordPress site?
The impact of CVE-2025-12166 on your WordPress site includes potential exposure of sensitive data and unauthorized access to the database.
What parameters are exploited in CVE-2025-12166?
CVE-2025-12166 exploits the 'order' and 'append_where_sql' parameters in the Simply Schedule Appointments plugin.
Which versions of Simply Schedule Appointments are affected by CVE-2025-12166?
Versions of the Simply Schedule Appointments plugin up to and including 1.6.9.9 are affected by CVE-2025-12166.