CVE-2026-111178
WP Booking System <= 2.1.0.1 - Authenticated (Administrator+) SQL Injection via 'orderby' Parameter
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.
INFO
Published Date :
Oct. 16, 2026, 7:17 a.m.
Last Modified :
Oct. 16, 2026, 7:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | MITRE-CVE | ||||
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the WP Booking System plugin.
- Apply vendor patches promptly.
- Validate and sanitize user inputs.
- Use prepared statements for database queries.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-111178.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-111178 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-111178
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-111178 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-111178 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by [email protected]
Oct. 16, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-89 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/111xxx/CVE-2026-111178.json">CVE-2026-111178</a> Added Reference https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/abstracts/abstract-class-object-db.php#L83 Added Reference https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/admin/booking/class-bookings-outputter.php#L214 Added Reference https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/admin/booking/functions-actions-booking.php#L219 Added Reference https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/booking/class-object-db-bookings.php#L165 Added Reference https://plugins.trac.wordpress.org/changeset?old=3732620&old_path=%2Fwp-booking-system%2Ftrunk&new=&new_path=%2Fwp-booking-system%2Ftrunk Added Reference https://plugins.trac.wordpress.org/changeset?reponame=&new=3736389%40wp-booking-system%2Ftags%2F2.1.0.2&old=3732637%40wp-booking-system%2Ftags%2F2.1.0.1 Added Reference https://www.wordfence.com/threat-intel/vulnerabilities/id/12923175-4db4-4afc-9e9b-b9f139f24a79?source=cve