Booking calendar, Appointment Booking System <= 3.2.8 — Multiple Authenticated(Editor+) SQL Injection

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Booking calendar, Appointment Booking System.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 3.2.9, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch Booking calendar, Appointment Booking System to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence.

The Booking calendar plugin for WordPress is vulnerable to SQL Injection via the search functionality on multiple administrative pages in versions up to, and including, 3.2.8 due to insufficient escaping on the user supplied parameters and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers with Editor privileges and above to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Note that the Pro version of the plugin allows administrators to grant access to the plugin's Administrative pages to any user role, so other roles may be able to exploit the vulnerability if they have been granted access.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Sep 12, 2023

   CVE published

   Severity high, CVSS 7.2

2. Nov 13, 2026

   Record last updated