CVE-2023-24407
📋 TL;DR
This CVE describes a missing authorization vulnerability in the WpDevArt Booking Calendar plugin for WordPress. It allows attackers to bypass access controls and potentially manipulate booking data or settings. All WordPress sites using affected versions of this plugin are vulnerable.
💻 Affected Systems
- WpDevArt Booking calendar, Appointment Booking System
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify or delete booking data, change plugin settings, or potentially escalate privileges to compromise the WordPress site.
Likely Case
Unauthorized users could view or modify booking appointments, potentially disrupting business operations or exposing sensitive customer information.
If Mitigated
With proper access controls and authentication checks, only authorized administrators could manage booking data.
🎯 Exploit Status
Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Versions after 3.2.3
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Booking Calendar' plugin
4. Click 'Update Now' if update is available
5. Alternatively, download latest version from WordPress repository and manually update
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Booking Calendar plugin until patched
wp plugin deactivate booking-calendar
Restrict plugin access
allUse WordPress security plugins to restrict access to plugin functionality
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block unauthorized access to plugin endpoints
- Monitor and audit all access to booking functionality and review logs for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Booking Calendar version 3.2.3 or earlierCheck Version:
wp plugin get booking-calendar --field=versionVerify Fix Applied:
Verify plugin version is higher than 3.2.3 in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to booking calendar endpoints
- Unusual booking modifications from unexpected IPs
Network Indicators:
- HTTP requests to /wp-content/plugins/booking-calendar/ endpoints without proper authentication
SIEM Query:
source="wordpress" AND (uri_path="/wp-content/plugins/booking-calendar/" OR plugin="booking-calendar") AND (response_code=200 OR action="modify") AND user="unauthenticated"