CVE-2024-3667 – The Brizy Page Builder WordPress plugin has a s... (How to Fix)

Q: What is the severity of CVE-2024-3667?

CVE-2024-3667 has a CVSS score of 7.4 (HIGH). The Brizy Page Builder WordPress plugin has a stored XSS vulnerability in its 'Link To' field across multiple widgets. Authenticated attackers with contributor-level access or higher can inject malicious scripts that execute when users view compromised pages. This affects all WordPress sites using Brizy Page Builder versions up to 2.4.43.

📋 TL;DR

The Brizy Page Builder WordPress plugin has a stored XSS vulnerability in its 'Link To' field across multiple widgets. Authenticated attackers with contributor-level access or higher can inject malicious scripts that execute when users view compromised pages. This affects all WordPress sites using Brizy Page Builder versions up to 2.4.43.

💻 Affected Systems

Products:

Brizy - Page Builder WordPress Plugin

Versions: All versions up to and including 2.4.43

Operating Systems: Any OS running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires WordPress with Brizy plugin installed; contributor-level authentication needed for exploitation.

📦 What is this software?

Brizy by Brizy

View all CVEs affecting Brizy →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, redirect users to malicious sites, deface websites, or install backdoors for persistent access.

🟠

Likely Case

Attackers with contributor access inject malicious scripts to steal user session cookies or redirect visitors to phishing sites.

🟢

If Mitigated

With proper input validation and output escaping, the vulnerability is eliminated; existing attacks would be neutralized.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ✅ No

Complexity: LOW

Exploitation requires authenticated access; contributor role or higher is sufficient. The vulnerability is straightforward to exploit once authenticated.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.4.44

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3086506%40brizy%2Ftrunk&old=3058896%40brizy%2Ftrunk

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 2.4.44 or higher.

🔧 Temporary Workarounds

Restrict User Roles

all

Limit contributor-level access to trusted users only; consider removing contributor role if not needed.

Disable Brizy Plugin

linux

Temporarily deactivate Brizy Page Builder until patched.

wp plugin deactivate brizy

🧯 If You Can't Patch

Implement strict Content Security Policy (CSP) headers to mitigate XSS impact.
Use web application firewall (WAF) rules to block XSS payloads in 'Link To' fields.

🔍 How to Verify

Check if Vulnerable:

Check Brizy plugin version in WordPress admin under Plugins > Installed Plugins; if version is 2.4.43 or lower, it's vulnerable.

Check Version:

wp plugin get brizy --field=version

Verify Fix Applied:

After updating, confirm version is 2.4.44 or higher in the plugin list.

📡 Detection & Monitoring

Log Indicators:

Unusual POST requests to Brizy widget endpoints with script tags in parameters
Multiple page edits by contributor users in short timeframes

Network Indicators:

Outbound connections to unknown domains from Brizy plugin pages
Script injections in page source code

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin-ajax.php" AND parameters CONTAINS "brizy" AND parameters CONTAINS "<script>")

📊 Metadata

CVE ID: CVE-2024-3667

CVSS v3 Score: 7.4 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L

CWE: CWE-79

Published: June 5, 2024

Last Updated: January 16, 2025

🔗 References

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