Online Scheduling and Appointment Booking System – Bookly <= 27.4 - Unauthenticated Information Exposure

5.3
Exposure of Sensitive Information to an Unauthorized Actor
CVE CVE-2026-42667
CVSS 5.3 (Medium)
Publicly Published May 10, 2026
Last Updated May 19, 2026
Researcher Tiago Ventura (perses)

Description

The Online Scheduling and Appointment Booking System – Bookly plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 27.4. This makes it possible for unauthenticated attackers to extract sensitive user or configuration data.

References

Share

Vulnerability Details for Online Scheduling and Appointment Booking System – Bookly

Software Type Plugin
Software Slug bookly-responsive-appointment-booking-tool (view on wordpress.org)
Patched? Yes
Remediation Update to version 27.5, or a newer patched version
Affected Version
  • <= 27.4
Patched Version
  • 27.5

Recent vulnerabilities in Online Scheduling and Appointment Booking System – Bookly

# Title CVE ID CVSS Researchers Date
1 Online Scheduling and Appointment Booking System – Bookly < 27.8 - Unauthenticated SQL Injection CVE-2026-13395 7.5 Jakub Herman August 3, 2026
2 Online Scheduling and Appointment Booking System <= 27.5 - Unauthenticated SQL Injection CVE-2026-14516 7.5 Nguyen Ngoc Duc (duc193) July 27, 2026
3 Online Scheduling and Appointment Booking System – Bookly <= 27.7 - Unauthenticated SQL Injection CVE-2026-61949 7.5 dodoh4t July 16, 2026
4 Online Scheduling and Appointment Booking System – Bookly <= 27.7 - Unauthenticated Stored Cross-Site Scripting CVE-2026-61944 7.2 ickogz July 16, 2026
5 Online Scheduling and Appointment Booking System – Bookly <= 27.2 - Unauthenticated Stored Cross-Site Scripting via 'bookly-customer-full-name' Cookie CVE-2026-5513 7.2 Naoya Takahashi (nakko) June 12, 2026
6 Online Scheduling and Appointment Booking System – Bookly <= 27.0 - Unauthenticated Price Manipulation via 'tips' CVE-2026-2519 5.3 Youssef Elouaer April 8, 2026
7 Online Scheduling and Appointment Booking System – Bookly <= 26.7 - Reflected Cross-Site Scripting CVE-2026-32540 6.1 ickogz March 20, 2026
8 WordPress Online Booking and Scheduling Plugin – Bookly <= 23.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Color Profile Parameter CVE-2024-5584 6.4 0xBishop June 10, 2024
9 WordPress Online Booking and Scheduling Plugin – Bookly <= 22.4.1 - Authenticated (Admin+) Stored Cross-Site Scripting CVE-2023-5209 4.4 Sławomir Zakrzewski, Maksymilian Kubiak November 6, 2023
10 Bookly <= 22.3.1 - Authenticated(Administrator+) SQL Injection CVE-2023-4691 6.6 Pablo Sanchez September 25, 2023

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation