murgroland Booking System Plugin up to 2.1.0.1 on WordPress AJAX orderby sql injection

Summaryinfo

A vulnerability classified as problematic was found in murgroland Booking System Plugin up to 2.1.0.1. Affected by this vulnerability is an unknown functionality of the component AJAX Handler. Such manipulation of the argument orderby leads to sql injection. This vulnerability is referenced as CVE-2026-111178. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in murgroland Booking System Plugin up to 2.1.0.1. It has been rated as problematic. Affected by this issue is an unknown function of the component AJAX Handler. The manipulation of the argument orderby with an unknown input leads to a sql injection vulnerability. Using CWE to declare the problem leads to CWE-89. The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at wordfence.com. This vulnerability is handled as CVE-2026-111178 since 10/15/2026. The exploitation is known to be easy. The attack may be launched remotely. The exploitation requires an enhanced level of successful authentication. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/16/2026). This vulnerability is assigned to T1505 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

• WordPress Plugin

Vendor

• murgroland

Name

• Booking System Plugin

Version

• 2.1.0.0
• 2.1.0.1

CPE 2.3info

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CPE 2.2info

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