CVE-2026-107712 WP Booking System <= 2.1.0.1 - Authenticated (Subscriber+) SQL Injection via 'current_month' Parameter

What is CVE-2026-107712?

CVE-2026-107712 is a medium-severity SQL injection vulnerability in murgroland WP Booking System – Booking Calendar, published on 10 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to time-based SQL Injection via the 'current_month' 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 subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a regression vulnerability — a capability check introduced in versions 2.0.19.11–2.0.19.14 to address CVE-2024-50425 was removed in version 2.1, meaning any authenticated subscriber-level account can reach the vulnerable handler with no nonce validation required.

Weakness: CWE-89

Which versions are affected by CVE-2026-107712?

How do I fix CVE-2026-107712?

No fix has been published for CVE-2026-107712 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-2026-107712 being exploited?

There is no known exploitation of CVE-2026-107712 in the wild and no public exploit code.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-2mjp-56p5-fv52.