WP Booking System <= 2.1.0.1 - Authenticated (Subscriber+) SQL Injection via 'current_month' Parameter
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| WordPress plugin | WP Booking System – Booking Calendar | <= 2.1.0.1 | 2.1.0.2 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
CWE-89- Platform
- WordPress
- Package
WP Booking System – Booking Calendar- Disclosed
- 09.10.2026
- Updated
- 11.10.2026 10:22
Sources and licenses
Wordfence Intelligence - 7c2aba47-a1bf-448d-b5fb-9c9c86e43c98 - Wordfence Intelligence
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Vulnerability history: WP Booking System – Booking Calendar
All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 05.2017 10.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 8
Disclosures per year
- 2017: 1
- 2018: 0
- 2019: 1
- 2020: 0
- 2021: 1
- 2022: 0
- 2023: 2
- 2024: 2
- 2025: 0
- 2026: 2
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WP Booking System <= 2.1.0.1 - Authenticated (Subscriber+) SQL Injection via 'current_month' Parameter this entry
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