8.6
High
CVE-2026-13395 The Online Scheduling and Appointment Booking System WordPress plugin before 27.8 does not sanitize or properly cast…
Description
The Online Scheduling and Appointment Booking System WordPress plugin before 27.8 does not sanitize or properly cast a user-supplied parameter from its unauthenticated front-end booking requests before using it in a SQL query, allowing unauthenticated attackers to perform SQL injection attacks and extract sensitive data such as password hashes from the database.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Online Scheduling and Appointment Booking System 27.8 | earliest → < 27.8 | 27.8 |
Other CVEs of Online Scheduling and Appointment Booking System
The 4 CVEs of Online Scheduling and Appointment Booking System →
CVE-2026-86841
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not prevent deserialization of…
4.7
Medium
CVE-2026-86839
The Online Scheduling and Appointment Booking System WordPress plugin before 28.3 does not verify that appointment…
3.8
Low
CVE-2026-91847
The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester…
4.8
Medium