CVE-2023-32590
📋 TL;DR
This SQL injection vulnerability in the WordPress Subscribe to Category plugin allows attackers to execute arbitrary SQL commands on the database. It affects all WordPress sites running vulnerable versions of the plugin, potentially compromising sensitive data.
💻 Affected Systems
- WordPress Subscribe to Category plugin
📦 What is this software?
Subscribe To Category by Subscribe To Category Project
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise leading to data theft, privilege escalation, and full site takeover
Likely Case
Unauthorized data access, user information exposure, and potential site defacement
If Mitigated
Limited impact with proper input validation and database permissions
🎯 Exploit Status
SQL injection vulnerabilities are commonly exploited with automated tools
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.7.5 or later
Vendor Advisory: https://patchstack.com/database/vulnerability/subscribe-to-category/wordpress-subscribe-to-category-plugin-2-7-4-sql-injection-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find Subscribe to Category plugin
4. Click 'Update Now' if available
5. If no update available, deactivate and remove the plugin
🔧 Temporary Workarounds
Disable vulnerable plugin
allDeactivate the Subscribe to Category plugin to prevent exploitation
wp plugin deactivate subscribe-to-category
Web Application Firewall rules
allImplement WAF rules to block SQL injection patterns
🧯 If You Can't Patch
- Deactivate and remove the Subscribe to Category plugin immediately
- Implement strict input validation and parameterized queries in custom code
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Subscribe to Category versionCheck Version:
wp plugin get subscribe-to-category --field=versionVerify Fix Applied:
Verify plugin version is 2.7.5 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts
- Unexpected plugin file modifications
Network Indicators:
- SQL injection patterns in HTTP requests
- Unusual database connection patterns
SIEM Query:
source="web_server" AND ("subscribe-to-category" OR "SQL" AND "injection")🔗 References
- https://patchstack.com/database/vulnerability/subscribe-to-category/wordpress-subscribe-to-category-plugin-2-7-4-sql-injection-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/subscribe-to-category/wordpress-subscribe-to-category-plugin-2-7-4-sql-injection-vulnerability?_s_id=cve
