Bookit — Booking & Appointment Calendar <= 2.5.1 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-40780
CVSS 5.3 (Medium)
Publicly Published April 22, 2026
Last Updated April 30, 2026
Researcher davidfdzmorilla

Description

The Bookit — Booking & Appointment Calendar plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in all versions up to, and including, 2.5.1. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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Vulnerability Details for Bookit — Booking & Appointment Calendar

Software Type Plugin
Software Slug bookit (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.5.4.1, or a newer patched version
Affected Version
  • <= 2.5.1
Patched Version
  • 2.5.4.1

Recent vulnerabilities in Bookit — Booking & Appointment Calendar

# Title CVE ID CVSS Researchers Date
1 Bookit — Booking & Appointment Calendar <= 2.6.0.3 - Missing Authorization CVE-2026-84767 5.3 sungbyeongchan September 3, 2026
2 Bookit <= 2.5.0 - Missing Authorization to Unauthenticated Settings Update CVE-2025-12841 5.3 Khaled Alenazi (Nxploited) November 15, 2025
3 Booking Calendar | Appointment Booking | Bookit <= 2.5.0 - Missing Authorization to Unauthenticated Stripe Connection CVE-2025-12633 7.5 Md. Moniruzzaman Prodhan (NomanProdhan) November 11, 2025
4 BookIt <=2.4.0 - Price Bypass CVE-2024-24715 4.9 Debangshu Kundu, Arpeet Rathi January 31, 2024
5 BookIt <= 2.4.3 - Authenticated(Administrator+) SQL Injection CVE-2023-50852 6.6 Muhammad Daffa December 21, 2023
6 Freemius SDK <= 2.5.9 - Reflected Cross-Site Scripting via fs_request_get CVE-2023-33999 6.1 Rafie Muhammad July 18, 2023
7 BookIt <= 2.3.7 - Authentication Bypass CVE-2023-2834 9.8 István Márton June 20, 2023
8 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVE-2022-4974 6.3 March 4, 2022

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