SQL Injection Vulnerability in Bookster Appointment Booking Plugin for WordPress
CVE-2025-8781

4.9MEDIUM

Key Information:

Vendor

WordPress
Status
Bookster – WordPress Appointment Booking Plugin
Vendor
CVE Published:
18 February 2026

What is CVE-2025-8781?

The Bookster Appointment Booking Plugin for WordPress contains a vulnerability that allows for SQL Injection via the 'raw' parameter, affecting all versions up to and including 2.1.1. This flaw arises from inadequate escaping of user-supplied input and suboptimal preparation of existing SQL queries. Authenticated users with Administrator-level privileges can exploit this vulnerability to inject additional SQL commands, potentially leading to unauthorized access to sensitive information stored within the database.

Affected Version(s)

Bookster – WordPress Appointment Booking Plugin 0 <= 2.1.1

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/bookster/trunk...
https://plugins.trac.wordpress.org/changeset/3434484/

CVSS V3.1

Score:
4.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Jonas Benjamin Friedli
.