CVE-2022-0254
📋 TL;DR
This vulnerability allows attackers to perform SQL injection attacks on WordPress sites using the Zero Spam plugin before version 5.2.11. Attackers can execute arbitrary SQL commands through unsanitized order and orderby parameters in the admin dashboard. This affects WordPress administrators with the vulnerable plugin installed.
💻 Affected Systems
- WordPress Zero Spam plugin
📦 What is this software?
Zero Spam by Highfivery
⚠️ Risk & Real-World Impact
Worst Case
Complete database compromise allowing data theft, modification, or deletion, and potential remote code execution through database functions.
Likely Case
Unauthorized data access, privilege escalation, or site defacement through SQL injection.
If Mitigated
Limited impact with proper input validation, parameterized queries, and database permissions in place.
🎯 Exploit Status
Exploitation requires admin access; SQL injection is well-documented and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.2.11
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/2680906
Restart Required: No
Instructions:
1. Log into WordPress admin. 2. Go to Plugins > Installed Plugins. 3. Find Zero Spam plugin. 4. Click 'Update Now' if available. 5. Alternatively, download version 5.2.11+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Zero Spam Plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate zero-spam
Restrict Admin Access
allLimit admin dashboard access to trusted IP addresses only.
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block SQL injection patterns
- Remove admin privileges from untrusted users and enforce strong authentication
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for Zero Spam version below 5.2.11.
Check Version:
wp plugin get zero-spam --field=version
Verify Fix Applied:
Confirm Zero Spam plugin version is 5.2.11 or higher in WordPress admin.
📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries in database logs
- Multiple failed login attempts to admin dashboard
- Suspicious order/orderby parameters in web server logs
Network Indicators:
- SQL error messages in HTTP responses
- Unusual database connection patterns from web server
SIEM Query:
source="web_server" AND ("order=" OR "orderby=") AND ("SELECT", "UNION", "OR 1=1")
🔗 References
- https://plugins.trac.wordpress.org/changeset/2660225
- https://plugins.trac.wordpress.org/changeset/2680906
- https://wpscan.com/vulnerability/ae54681f-7b89-408c-b0ee-ba4a520db997
- https://plugins.trac.wordpress.org/changeset/2660225
- https://plugins.trac.wordpress.org/changeset/2680906
- https://wpscan.com/vulnerability/ae54681f-7b89-408c-b0ee-ba4a520db997