CVE-2025-3951
📋 TL;DR
This SQL injection vulnerability in the WP-Optimize WordPress plugin allows administrators in multi-site WordPress configurations to execute arbitrary SQL queries. The vulnerability stems from improper input escaping when checking image compression statuses. Only WordPress multi-site installations with the WP-Optimize plugin are affected.
💻 Affected Systems
- WP-Optimize WordPress Plugin
📦 What is this software?
Wp Optimize by Updraftplus
⚠️ Risk & Real-World Impact
Worst Case
Administrator could execute arbitrary SQL commands, potentially leading to data theft, data manipulation, or complete database compromise.
Likely Case
Administrator could extract sensitive data from the WordPress database, including user credentials, personal information, or site configuration.
If Mitigated
With proper access controls limiting administrator privileges and network segmentation, impact would be limited to the database accessible to the compromised account.
🎯 Exploit Status
Requires administrator privileges in WordPress multi-site configuration. SQL injection is a well-understood attack vector.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.2.0
Vendor Advisory: https://wpscan.com/vulnerability/220c195f-3df3-4883-8e0b-a0cf019e6323/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find WP-Optimize and click 'Update Now'. 4. Verify version is 4.2.0 or higher.
🔧 Temporary Workarounds
Disable WP-Optimize Plugin
allTemporarily disable the vulnerable plugin until patching is possible
wp plugin deactivate wp-optimize
Restrict Administrator Access
allLimit administrator accounts to trusted personnel only
🧯 If You Can't Patch
- Implement strict access controls for administrator accounts
- Deploy web application firewall with SQL injection protection rules
🔍 How to Verify
Check if Vulnerable:
Check WP-Optimize plugin version in WordPress admin panel under Plugins → Installed PluginsCheck Version:
wp plugin get wp-optimize --field=versionVerify Fix Applied:
Verify WP-Optimize version is 4.2.0 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in WordPress or database logs
- Multiple failed login attempts followed by administrator access
Network Indicators:
- Unusual database connection patterns from web server
- SQL error messages in HTTP responses
SIEM Query:
source="wordpress.log" AND "wp-optimize" AND ("sql" OR "database" OR "query")