CVE-2024-6254
📋 TL;DR
The Brizy Page Builder WordPress plugin has a CSRF vulnerability that allows attackers to trick administrators into submitting malicious forms. This affects all versions up to 2.5.1. When unfiltered_html is enabled, this can lead to stored XSS attacks.
💻 Affected Systems
- Brizy – Page Builder WordPress plugin
📦 What is this software?
Brizy by Brizy
⚠️ Risk & Real-World Impact
Worst Case
Administrator unknowingly injects persistent XSS payloads that compromise all site visitors when unfiltered_html is enabled.
Likely Case
Attacker tricks admin into submitting unwanted form data or configuration changes.
If Mitigated
Attack fails due to proper nonce validation or user awareness training.
🎯 Exploit Status
Exploitation requires social engineering to trick administrator into clicking malicious link.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.5.2 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Brizy Page Builder and click 'Update Now'. 4. Verify version is 2.5.2 or higher.
🔧 Temporary Workarounds
Disable unfiltered_html capability
allPrevents XSS escalation by removing administrator's ability to post unfiltered HTML
Add to wp-config.php: define('DISALLOW_UNFILTERED_HTML', true);
🧯 If You Can't Patch
- Temporarily disable Brizy plugin until patched
- Implement Content Security Policy headers to mitigate XSS impact
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Brizy Page Builder → Version. If version is 2.5.1 or lower, system is vulnerable.Check Version:
wp plugin list --name=brizy --field=versionVerify Fix Applied:
Confirm Brizy plugin version is 2.5.2 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unexpected form submissions from Brizy endpoints
- CSRF token validation failures in WordPress logs
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with action=brizy_* without proper referrer headers
SIEM Query:
source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" AND action="brizy_*") AND NOT referrer="*wp-admin*"