CVE-2023-45055
📋 TL;DR
This SQL injection vulnerability in the InspireUI MStore API WordPress plugin allows attackers to execute arbitrary SQL commands on the database. It affects all WordPress sites using MStore API versions up to and including 4.0.6. Successful exploitation could lead to data theft, modification, or complete database compromise.
💻 Affected Systems
- InspireUI MStore API WordPress plugin
📦 What is this software?
Mstore Api by Inspireui
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive data exfiltration, privilege escalation, remote code execution via database functions, and potential site takeover.
Likely Case
Data theft of user information, content manipulation, and potential administrative access through credential extraction.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database user privilege restrictions.
🎯 Exploit Status
SQL injection vulnerabilities are commonly weaponized. The public disclosure increases likelihood of active exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.0.7 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/mstore-api/wordpress-mstore-api-plugin-4-0-6-sql-injection-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find MStore API plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 4.0.7+ from WordPress.org and replace plugin files.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate mstore-api
Web Application Firewall Rules
allBlock SQL injection patterns targeting MStore API endpoints
🧯 If You Can't Patch
- Implement strict input validation and parameterized queries in custom code
- Restrict database user permissions to minimum required privileges
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → MStore API version. If version is 4.0.6 or lower, you are vulnerable.Check Version:
wp plugin get mstore-api --field=versionVerify Fix Applied:
Confirm MStore API plugin version is 4.0.7 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts from single IP
- Unexpected database schema changes
Network Indicators:
- HTTP requests with SQL syntax in parameters
- Unusual traffic to /wp-json/mstore-api/ endpoints
SIEM Query:
source="web_server" AND (uri_path="/wp-json/mstore-api/*" AND (query="*SELECT*" OR query="*UNION*" OR query="*INSERT*" OR query="*DELETE*"))