Bookly <= 21.7.1 - Arbitrary File Deletion

8.1
Missing Authorization
CVE CVE-2023-26526
CVSS 8.1 (High)
Publicly Published May 11, 2023
Last Updated May 17, 2023
Researcher Rafie Muhammad - Awesome Motive, Inc.

Description

The Bookly plugin for WordPress is vulnerable to arbitrary file deletion in versions up to, and including, 21.7.1. This makes it possible for authenticated attackers with staff-level access to delete arbitrary files on the affected site's server which may make a site takeover possible.

References

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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 21.8, or a newer patched version
Affected Version
  • <= 21.7.1
Patched Version
  • 21.8

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 <= 27.4 - Unauthenticated Information Exposure CVE-2026-42667 5.3 Tiago Ventura (perses) May 10, 2026
7 Online Scheduling and Appointment Booking System – Bookly <= 27.0 - Unauthenticated Price Manipulation via 'tips' CVE-2026-2519 5.3 Youssef Elouaer April 8, 2026
8 Online Scheduling and Appointment Booking System – Bookly <= 26.7 - Reflected Cross-Site Scripting CVE-2026-32540 6.1 ickogz March 20, 2026
9 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
10 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

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