CVE-2025-46247
📋 TL;DR
This CVE describes a missing authorization vulnerability in the Appointment Booking Calendar WordPress plugin that allows attackers to access functionality not properly constrained by access controls. Attackers can perform actions intended only for authorized users. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Appointment Booking Calendar WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could modify or delete appointments, access sensitive booking data, or manipulate calendar settings, potentially disrupting business operations or exposing confidential information.
Likely Case
Unauthorized users accessing booking functionality to view or modify appointments, potentially causing scheduling conflicts or data exposure.
If Mitigated
With proper authorization checks, only authenticated users with appropriate permissions can access booking management functions.
🎯 Exploit Status
Missing authorization vulnerabilities typically require minimal technical skill to exploit once the attack vector is identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.93 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Appointment Booking Calendar'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.3.93+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate appointment-booking-calendar
Restrict Access
linuxUse web application firewall or .htaccess to restrict access to plugin endpoints
# Add to .htaccess: RewriteRule ^wp-content/plugins/appointment-booking-calendar/ - [F,L]
🧯 If You Can't Patch
- Implement network segmentation to isolate WordPress instance from sensitive systems
- Enable detailed logging and monitoring for unauthorized access attempts to booking functionality
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Appointment Booking Calendar versionCheck Version:
wp plugin get appointment-booking-calendar --field=versionVerify Fix Applied:
Verify plugin version is 1.3.93 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to /wp-content/plugins/appointment-booking-calendar/
- Unauthorized users accessing booking management endpoints
- Failed authorization attempts on booking functions
Network Indicators:
- HTTP requests to booking endpoints from unauthenticated sources
- Unusual POST/PUT requests to appointment management APIs
SIEM Query:
source="wordpress.log" AND ("appointment-booking-calendar" OR "booking") AND (status=200 OR status=403) AND user="unauthenticated"