CVE-2022-0479
📋 TL;DR
This vulnerability in the Popup Builder WordPress plugin allows SQL injection and reflected XSS attacks. Attackers can exploit it by sending malicious links to logged-in administrators, potentially compromising the WordPress database and admin sessions. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Popup Builder WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full database compromise leading to data theft, privilege escalation, and complete site takeover via SQL injection, combined with admin session hijacking via XSS.
Likely Case
Database information disclosure, potential admin account compromise via XSS, and limited data manipulation.
If Mitigated
No impact if plugin is patched or workarounds are implemented; minimal risk with proper network segmentation and admin security practices.
🎯 Exploit Status
Exploitation requires social engineering to trick admin into clicking malicious link; SQL injection is straightforward once access is gained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 4.1.1
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/2686454
Restart Required: No
Instructions:
1. Log into WordPress admin dashboard. 2. Navigate to Plugins > Installed Plugins. 3. Find Popup Builder plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 4.1.1+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable the vulnerable plugin until patched
wp plugin deactivate popup-builder
Input Sanitization Rule
allAdd WAF rule to block malicious sgpb-subscription-popup-id parameters
🧯 If You Can't Patch
- Restrict admin dashboard access to trusted IP addresses only
- Implement strict Content Security Policy (CSP) headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check plugin version in WordPress admin dashboard under Plugins > Installed PluginsCheck Version:
wp plugin get popup-builder --field=versionVerify Fix Applied:
Confirm plugin version is 4.1.1 or higher after update📡 Detection & Monitoring
Log Indicators:
- Unusual SQL queries containing sgpb-subscription-popup-id parameter
- Admin dashboard access from unexpected IPs
Network Indicators:
- HTTP requests with malicious payloads in sgpb-subscription-popup-id parameter
SIEM Query:
SELECT * FROM logs WHERE url LIKE '%sgpb-subscription-popup-id=%' AND (payload LIKE '%SELECT%' OR payload LIKE '%UNION%' OR payload LIKE '%script%')