CVE-2023-25054
📋 TL;DR
CVE-2023-25054 is a critical code injection vulnerability in the RSVPMaker WordPress plugin that allows remote attackers to execute arbitrary code on affected systems. This affects all WordPress sites running RSVPMaker versions up to 10.6.6. Attackers can potentially take complete control of vulnerable websites.
💻 Affected Systems
- WordPress RSVPMaker Plugin
📦 What is this software?
Rsvpmaker by Carrcommunications
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to execute arbitrary code, install malware, steal sensitive data, deface websites, or use the server as part of a botnet.
Likely Case
Remote code execution leading to website takeover, data theft, and installation of backdoors or cryptocurrency miners.
If Mitigated
Limited impact with proper web application firewalls, restricted file permissions, and network segmentation preventing lateral movement.
🎯 Exploit Status
Public exploit code is available, making this easily weaponizable by attackers with minimal technical skill.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.6.7 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/rsvpmaker/wordpress-rsvpmaker-plugin-10-6-6-remote-code-execution-rce-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find RSVPMaker and click 'Update Now'. 4. Verify update to version 10.6.7 or higher.
🔧 Temporary Workarounds
Disable RSVPMaker Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate rsvpmaker
Web Application Firewall Rule
allBlock malicious requests targeting RSVPMaker endpoints
# Configure WAF to block requests to /wp-content/plugins/rsvpmaker/ with suspicious parameters
🧯 If You Can't Patch
- Immediately disable or remove the RSVPMaker plugin from all WordPress installations
- Implement strict network segmentation to isolate WordPress servers and monitor for suspicious outbound connections
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → RSVPMaker version. If version is 10.6.6 or lower, system is vulnerable.Check Version:
wp plugin get rsvpmaker --field=versionVerify Fix Applied:
Verify RSVPMaker plugin version is 10.6.7 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to RSVPMaker plugin files
- PHP code execution attempts in web server logs
- Unauthorized file uploads or modifications
Network Indicators:
- Outbound connections to suspicious IPs from WordPress server
- Unusual traffic patterns to /wp-content/plugins/rsvpmaker/
SIEM Query:
source="web_server" AND (uri_path="/wp-content/plugins/rsvpmaker/*" AND (http_method="POST" OR parameters CONTAINS "eval" OR parameters CONTAINS "system"))