CVE-2023-5640
📋 TL;DR
This CVE describes a critical SQL injection vulnerability in the Article Analytics WordPress plugin. Unauthenticated attackers can exploit it by sending specially crafted requests to a vulnerable AJAX endpoint, potentially allowing them to read, modify, or delete database contents. All WordPress sites using the vulnerable plugin are affected.
💻 Affected Systems
- WordPress Article Analytics plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, privilege escalation, remote code execution via file writes, and full site takeover.
Likely Case
Database information disclosure, including user credentials, sensitive content, and plugin data extraction.
If Mitigated
Limited impact with proper WAF rules, database permissions, and network segmentation preventing data exfiltration.
🎯 Exploit Status
Public proof-of-concept demonstrates exploitation via simple HTTP POST requests. The vulnerability is easily weaponized due to unauthenticated access and low complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.2
Vendor Advisory: https://wpscan.com/vulnerability/9a383ef5-0f1a-4894-8f78-845abcb5062d
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Article Analytics' plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 1.0.2+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable AJAX endpoint
allBlock access to the vulnerable AJAX action via .htaccess or web server configuration
# Add to .htaccess
RewriteCond %{QUERY_STRING} action=article_analytics_ajax [NC]
RewriteRule ^wp-admin/admin-ajax\.php$ - [F,L]
Web Application Firewall rule
allBlock SQL injection patterns targeting the vulnerable parameter
# Example ModSecurity rule
SecRule ARGS:action "@streq article_analytics_ajax" \
"id:1001,phase:2,deny,status:403,msg:'Blocking Article Analytics SQLi attempt'
🧯 If You Can't Patch
- Immediately disable or remove the Article Analytics plugin from all WordPress installations
- Implement network-level blocking of requests containing SQL injection patterns to /wp-admin/admin-ajax.php
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Article Analytics version. If version is below 1.0.2, the site is vulnerable.Check Version:
# WordPress CLI
wp plugin list --name=article-analytics --field=version
# Direct file check
grep "Version:" wp-content/plugins/article-analytics/article-analytics.phpVerify Fix Applied:
Confirm Article Analytics plugin version is 1.0.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with 'action=article_analytics_ajax' containing SQL keywords
- Unusual database queries from WordPress application user
- Multiple failed SQL syntax errors in application logs
Network Indicators:
- POST requests to admin-ajax.php with SQL injection payloads in parameters
- Unusual outbound database connections from web server
SIEM Query:
source="web_logs" AND uri_path="/wp-admin/admin-ajax.php" AND (http_method="POST" AND query_string="*action=article_analytics_ajax*") AND (raw_request="*UNION*" OR raw_request="*SELECT*" OR raw_request="*INSERT*" OR raw_request="*DELETE*")🔗 References
- https://devl00p.github.io/posts/Injection-SQL-dans-le-plugin-Wordpress-Article-Analytics/
- https://wpscan.com/vulnerability/9a383ef5-0f1a-4894-8f78-845abcb5062d
- https://devl00p.github.io/posts/Injection-SQL-dans-le-plugin-Wordpress-Article-Analytics/
- https://wpscan.com/vulnerability/9a383ef5-0f1a-4894-8f78-845abcb5062d
