CVE-2024-11135
📋 TL;DR
The Eventer WordPress plugin contains an SQL injection vulnerability that allows unauthenticated attackers to execute arbitrary SQL queries through the 'event' parameter. This can lead to extraction of sensitive database information like user credentials, payment details, or private event data. All WordPress sites using Eventer plugin versions up to 3.9.8 are affected.
💻 Affected Systems
- Eventer WordPress Event Manager Plugin
📦 What is this software?
Eventer by Imithemes
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including administrator credentials, sensitive user data, and potential privilege escalation to full site takeover.
Likely Case
Data exfiltration of event attendee information, user emails, and potentially hashed passwords from the WordPress database.
If Mitigated
Limited information disclosure if database permissions are properly restricted and sensitive data is encrypted.
🎯 Exploit Status
Exploitation requires no authentication and uses standard SQL injection techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.9.9 or later
Vendor Advisory: https://codecanyon.net/item/eventer-wordpress-event-manager-plugin/20972534
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Eventer plugin
4. Click 'Update Now' if update available
5. If no update appears, manually download version 3.9.9+ from CodeCanyon
6. Deactivate old plugin, upload new version via FTP/WP admin, activate
🔧 Temporary Workarounds
Temporary Plugin Deactivation
WordPressDisable the Eventer plugin until patched to prevent exploitation
wp plugin deactivate eventer
🧯 If You Can't Patch
- Implement Web Application Firewall (WAF) with SQL injection rules
- Restrict database user permissions to SELECT only for the Eventer plugin
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Eventer version. If version is 3.9.8 or lower, you are vulnerable.Check Version:
wp plugin get eventer --field=versionVerify Fix Applied:
Verify Eventer plugin version is 3.9.9 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple requests to /wp-admin/admin-ajax.php with 'event' parameter containing SQL syntax
Network Indicators:
- POST requests to admin-ajax.php with SQL keywords in parameters
- Unusual database connection patterns from web server
SIEM Query:
source="web_access" AND uri="/wp-admin/admin-ajax.php" AND (param="event" AND value CONTAINS "UNION" OR value CONTAINS "SELECT" OR value CONTAINS "--" OR value CONTAINS "')")