CVE-2026-111178 WP Booking System <= 2.1.0.1 - Authenticated (Administrator+) SQL Injection via 'orderby' Parameter
Authenticated administrators can exploit SQL injection in WP Booking System to extract sensitive database information when specific booking conditions are met.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-111178?
CVE-2026-111178 is a medium-severity SQL injection vulnerability in murgroland WP Booking System – Booking Calendar, published on 16 Oct 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official description
The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to generic SQL Injection via the 'data[orderby]' parameter in all versions up to, and including, 2.1.0.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. Exploitation requires the targeted calendar to have more than 200 bookings, as the orderby value is only forwarded to the database layer when the AJAX handler takes the use_ajax branch; an Administrator can satisfy this condition by creating bookings directly.
Weakness: CWE-89
Which versions are affected by CVE-2026-111178?
How do I fix CVE-2026-111178?
No fix has been published for CVE-2026-111178 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-111178 being exploited?
There is no known exploitation of CVE-2026-111178 in the wild and no public exploit code.
Sources
Also known as GHSA-936g-2qxf-mq79.