CVE-2023-38520
📋 TL;DR
This vulnerability allows attackers to manipulate web parameters in the Pinpoint Booking System WordPress plugin, enabling functionality misuse such as unauthorized booking modifications or data access. It affects all WordPress sites running Pinpoint Booking System versions up to 2.9.9.3.4.
💻 Affected Systems
- Pinpoint Booking System WordPress Plugin
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of booking functionality allowing unauthorized booking creation, modification, deletion, or access to sensitive booking data including customer information.
Likely Case
Unauthorized manipulation of booking parameters leading to booking fraud, service disruption, or data exposure.
If Mitigated
Limited impact with proper input validation and access controls in place.
🎯 Exploit Status
Parameter tampering vulnerabilities typically have low exploitation complexity and may be exploited without authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.9.9.3.5 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/booking-system/wordpress-pinpoint-booking-system-plugin-2-9-9-3-4-parameter-tampering
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Pinpoint Booking System. 4. Click 'Update Now' if available. 5. Alternatively, download latest version from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate booking-system
Web Application Firewall Rules
allImplement WAF rules to block parameter tampering attempts
🧯 If You Can't Patch
- Implement strict input validation and sanitization for all booking parameters
- Add authentication and authorization checks for all booking functionality
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Pinpoint Booking System versionCheck Version:
wp plugin get booking-system --field=versionVerify Fix Applied:
Verify plugin version is 2.9.9.3.5 or higher📡 Detection & Monitoring
Log Indicators:
- Unusual parameter values in booking requests
- Multiple failed booking attempts with manipulated parameters
Network Indicators:
- HTTP requests with unexpected parameter values to booking endpoints
SIEM Query:
source="web_logs" AND (uri="*booking*" OR uri="*pinpoint*") AND (param_value="*[malicious_pattern]*" OR param_length>1000)