CVE-2024-33551
📋 TL;DR
This is an unauthenticated SQL injection vulnerability in the XStore Core WordPress plugin. Attackers can execute arbitrary SQL commands without authentication, potentially compromising the database. All WordPress sites using XStore Core versions up to 5.3.5 are affected.
💻 Affected Systems
- XStore Core WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, privilege escalation, remote code execution, or site takeover.
Likely Case
Database information disclosure, data manipulation, or administrative access to WordPress.
If Mitigated
Limited impact if proper input validation and WAF rules block malicious requests.
🎯 Exploit Status
SQL injection is well-understood with many automated tools available. Public exploit details exist on Patchstack.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.3.6 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/et-core-plugin/wordpress-xstore-core-plugin-5-3-5-unauthenticated-sql-injection-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find XStore Core plugin
4. Click 'Update Now' if update available
5. Alternatively, download version 5.3.6+ from WordPress repository and manually update
🔧 Temporary Workarounds
Disable XStore Core plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate et-core-plugin
Web Application Firewall rules
allImplement WAF rules to block SQL injection patterns targeting XStore Core endpoints
🧯 If You Can't Patch
- Implement strict network segmentation to isolate WordPress instance
- Deploy database monitoring to detect SQL injection attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > XStore Core version. If version is 5.3.5 or lower, you are vulnerable.Check Version:
wp plugin get et-core-plugin --field=versionVerify Fix Applied:
Verify XStore Core plugin version is 5.3.6 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in WordPress logs
- Multiple requests to XStore Core endpoints with SQL syntax
Network Indicators:
- HTTP requests containing SQL keywords (SELECT, UNION, etc.) to /wp-content/plugins/et-core-plugin/ endpoints
SIEM Query:
source="wordpress.log" AND ("et-core-plugin" OR "XStore") AND ("SQL" OR "database" OR "syntax")