Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.6.20 - Cross-Site Request Forgery to Plugin Data Reset

4.3
Cross-Site Request Forgery (CSRF)
CVE CVE-2024-1760
CVSS 4.3 (Medium)
Publicly Published March 5, 2024
Last Updated March 6, 2024
Researcher Krzysztof Zając - CERT PL

Description

The Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.6.6.20. This is due to missing or incorrect nonce validation on the ssa_factory_reset() function. This makes it possible for unauthenticated attackers to reset the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

References

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Vulnerability Details for Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin

Software Type Plugin
Software Slug simply-schedule-appointments (view on wordpress.org)
Patched? Yes
Remediation Update to version 1.6.6.24, or a newer patched version
Affected Version
  • <= 1.6.6.20
Patched Version
  • 1.6.6.24

Recent vulnerabilities in Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin

# Title CVE ID CVSS Researchers Date
1 Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.12.2 - Unauthenticated Stored Cross-Site Scripting CVE-2026-57317 7.2 vnth4nhnt June 26, 2026
2 Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.10.6 - Unauthenticated Stored Cross-Site Scripting CVE-2026-39447 7.2 devploit May 28, 2026
3 Appointment Booking Calendar <= 1.6.11.8 - Missing Authorization to Unauthenticated Arbitrary Modification via Bulk Appointments REST API Endpoint CVE-2026-6937 5.3 winrace May 27, 2026
4 Appointment Booking Calendar <= 1.6.11.8 - Unauthenticated SQL Injection via 'append_where_sql' Parameter CVE-2026-7797 7.5 daroo May 27, 2026
5 Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.11.5 - Unauthenticated Denial of Service CVE-2026-7493 5.3 lucky_buddy May 26, 2026
6 Appointment Booking Calendar <= 1.6.10.6 - Unauthenticated Arbitrary Appointment View, Modification and Deletion CVE-2026-4807 6.5 Athiwat Tiprasaharn (Jitlada) May 6, 2026
7 Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin < 1.6.11.2 - Unauthenticated Sensitive Information Exposure CVE-2026-42384 5.3 Jakub Herman April 27, 2026
8 Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.9.27 - Unauthenticated SQL Injection CVE-2026-39493 7.5 Doan Dinh Van (d52v) April 8, 2026
9 Simply Schedule Appointments <= 1.6.9.27 - Authenticated (Contributor+) SQL Injection CVE-2026-39495 6.5 daroo March 26, 2026
10 Appointment Booking Calendar <= 1.6.10.0 - Unauthenticated SQL Injection via 'fields' Parameter CVE-2026-3658 7.5 momopon1415 March 18, 2026

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