What’s Vulnerable › Vulnerabilities

CVE-2024-1760: Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin <= 1.6.6.20 - Cross-Site Request Forgery to Plugin Data Reset

• Severity: medium (CVSS 4.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-06 · updated 2026-06-17
• Weakness: CWE-352

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.

Affected products

• croixhaug Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin: before 1.6.6.24 — fixed in 1.6.6.24

How to fix

Upgrade to a fixed version: croixhaug Appointment Booking Calendar — Simply Schedule Appointments Booking Plugin 1.6.6.24. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/class-support.php#L527
• https://plugins.trac.wordpress.org/changeset/3042890/simply-schedule-appointments/trunk/includes/class-support.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0eec9744-6dbd-42bd-b9c5-c9d792cecf4b?source=cve
• https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/trunk/includes/class-support.php#L527
• https://plugins.trac.wordpress.org/changeset/3042890/simply-schedule-appointments/trunk/includes/class-support.php
• https://www.wordfence.com/threat-intel/vulnerabilities/id/0eec9744-6dbd-42bd-b9c5-c9d792cecf4b?source=cve

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