CVE-2024-7493
📋 TL;DR
The WPCOM Member WordPress plugin allows unauthenticated attackers to register as administrators due to improper input validation. This affects all WordPress sites using WPCOM Member plugin versions 1.5.2.1 and earlier. Attackers can gain full administrative control of vulnerable WordPress installations.
💻 Affected Systems
- WPCOM Member WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete site takeover with administrative privileges, allowing data theft, defacement, malware injection, and further network compromise.
Likely Case
Attackers create administrator accounts to install backdoors, steal sensitive data, or use the site for malicious activities.
If Mitigated
Attack prevented through patching or workarounds, with no privilege escalation possible.
🎯 Exploit Status
Simple HTTP POST request manipulation during user registration can trigger the vulnerability.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.5.2.2 or later
Vendor Advisory: https://plugins.trac.wordpress.org/browser/wpcom-member/tags/1.5.2.2/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find WPCOM Member plugin. 4. Click 'Update Now' if available. 5. If no update appears, manually download version 1.5.2.2+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Disable User Registration
allTemporarily disable new user registration in WordPress settings
Deactivate WPCOM Member Plugin
allCompletely disable the vulnerable plugin until patched
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block suspicious user registration requests
- Monitor user creation logs for administrator role assignments
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for WPCOM Member version 1.5.2.1 or earlierCheck Version:
wp plugin list --name=wpcom-member --field=versionVerify Fix Applied:
Confirm WPCOM Member plugin version is 1.5.2.2 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- User registration logs showing role parameter manipulation
- New administrator accounts created via registration form
Network Indicators:
- HTTP POST requests to registration endpoints with role parameter set to administrator
SIEM Query:
source="wordpress.log" AND "wp_insert_user" AND "role=administrator"