SQL injection in WP Booking System WordPress plugin
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The WP Booking System (Booking Calendar) plugin for WordPress is affected in all versions through 2.1.0.1. Insufficient escaping and an unprepared SQL query in the current_month parameter let attackers append SQL queries to existing ones (CWE-89). An authenticated attacker with subscriber-level access or higher can extract sensitive data from the database using time-based injection. This is a regression, because a capability check added for CVE-2024-50425 was removed in version 2.1.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| murgroland | WP Booking System – Booking Calendar | up to 2.1.0.1 | — | No fix listed | CNA |
- WP Booking System – Booking Calendar Vendormurgroland Affected up to 2.1.0.1 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for WP Booking System (Booking Calendar).
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-10 Threatist record created from CVE-2026-107712
- 2026-10-10 Alias added: GHSA-2mjp-56p5-fv52
- 2026-10-11 Priority changed: MEDIUM → LOW
- 2026-10-11 CISA SSVC decision points changed
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7c2aba47-a1bf-448d-b5fb-9c9c86e43c98?source=cve
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/abstracts/abstract-class-object-db.php#L83
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/booking/class-object-db-bookings.php#L161
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/calendar/functions.php#L341
- https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.1/includes/base/admin/calendar/functions-actions-ajax-calendar.php#L44
- https://plugins.trac.wordpress.org/changeset?old=3732620&old_path=%2Fwp-booking-system%2Ftrunk&new=&new_path=%2Fwp-booking-system%2Ftrunk
- 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
More murgroland vulnerabilities
- TI-2026-83495 Missing authorization in WP Booking System allows note deletion CVSS 3.1CRITICAL 9.1
- TI-2026-76013 Missing authorization in WP Booking System exposes booking emails CVSS 3.1HIGH 7.5
- TI-2026-76022 Missing authorization in WP Booking System allows access escalation CVSS 3.1MEDIUM 6.8
- TI-2026-76021 Missing authorization in WP Booking System exposes booking data CVSS 3.1MEDIUM 6.5
- TI-2026-75287 SQL injection in WP Booking System plugin via orderby parameter CVSS 3.1MEDIUM 4.9
Sources
- CVE-2026-107712 · CVE Program
- CVE-2026-107712 · NVD
- FIRST EPSS
- GHSA-2mjp-56p5-fv52 · GitHub Advisory Database · CC BY 4.0
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