CVE-2019-1010104
📋 TL;DR
This SQL injection vulnerability in the TechyTalk Quick Chat WordPress plugin allows attackers to execute arbitrary SQL commands through crafted AJAX requests. Attackers can potentially access, modify, or delete database content. All WordPress sites using this plugin up to the latest version at the time of disclosure are affected.
💻 Affected Systems
- TechyTalk Quick Chat WordPress Plugin
📦 What is this software?
Quick Chat by Techytalk
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise including sensitive data exfiltration, privilege escalation, and potential site takeover.
Likely Case
Data theft from the WordPress database including user credentials, personal information, and site content.
If Mitigated
Limited impact if database permissions are properly restricted and input validation is enforced elsewhere.
🎯 Exploit Status
Exploit requires sending crafted AJAX requests to vulnerable endpoints. Public proof-of-concept exists in the provided references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown specific version - check plugin repository for updates after 2019
Vendor Advisory: https://wordpress.org/plugins/quick-chat/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Quick Chat plugin. 4. Click 'Update Now' if available. 5. If no update available, deactivate and remove the plugin immediately.
🔧 Temporary Workarounds
Disable Quick Chat Plugin
allDeactivate the vulnerable plugin to prevent exploitation
wp plugin deactivate quick-chat
Web Application Firewall Rule
allBlock malicious AJAX requests targeting the vulnerable endpoint
Add WAF rule to block requests containing SQL injection patterns to /wp-admin/admin-ajax.php with action=quick_chat
🧯 If You Can't Patch
- Deactivate and remove the Quick Chat plugin immediately
- Implement strict WAF rules to block SQL injection patterns in AJAX requests
🔍 How to Verify
Check if Vulnerable:
Check if Quick Chat plugin is installed and active in WordPress plugins listCheck Version:
wp plugin get quick-chat --field=versionVerify Fix Applied:
Verify plugin is either updated to latest version or completely removed from plugins directory📡 Detection & Monitoring
Log Indicators:
- Unusual SQL errors in WordPress logs
- Multiple AJAX requests to /wp-admin/admin-ajax.php with quick_chat action
- Database query errors containing 'like_escape'
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with SQL injection payloads
- Unusual database connection patterns from web server
SIEM Query:
source="wordpress.log" AND "admin-ajax.php" AND "quick_chat" AND ("SQL" OR "database" OR "like_escape")