CVE-2024-1937
📋 TL;DR
The Brizy Page Builder WordPress plugin has an authorization bypass vulnerability that allows authenticated users with contributor-level access or higher to modify any published post content. This can lead to injection of malicious JavaScript into websites. All WordPress sites using Brizy Page Builder versions up to 2.4.44 are affected.
💻 Affected Systems
- Brizy – Page Builder WordPress plugin
📦 What is this software?
Brizy by Brizy
⚠️ Risk & Real-World Impact
Worst Case
Attackers inject persistent cross-site scripting (XSS) payloads into high-traffic pages, compromising all visitors and potentially leading to credential theft, malware distribution, or complete site takeover.
Likely Case
Malicious contributors or compromised accounts modify posts to insert phishing content, redirects, or cryptocurrency miners, damaging site reputation and user trust.
If Mitigated
With proper access controls and monitoring, unauthorized modifications are detected and reverted before causing significant harm.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has contributor credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.4.45
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3112878/brizy/trunk/editor/api.php
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 shows 2.4.45 or higher.
🔧 Temporary Workarounds
Disable Brizy Plugin
allTemporarily deactivate the Brizy Page Builder plugin until patched.
wp plugin deactivate brizy
Restrict Contributor Access
allTemporarily downgrade or remove contributor roles from untrusted users.
wp user set-role <username> subscriber
🧯 If You Can't Patch
- Implement strict access controls and review all users with contributor or higher privileges.
- Enable WordPress security plugins with file integrity monitoring and regular content audits.
🔍 How to Verify
Check if Vulnerable:
Check Brizy plugin version in WordPress admin under Plugins → Installed Plugins. If version is 2.4.44 or lower, you are vulnerable.Check Version:
wp plugin get brizy --field=versionVerify Fix Applied:
After updating, confirm Brizy plugin version shows 2.4.45 or higher in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual post modifications by contributor-level users
- Multiple post updates in short timeframes from same user
Network Indicators:
- Unexpected JavaScript loading from modified posts
- External script calls from previously static content
SIEM Query:
source="wordpress" (event="post_modified" OR event="content_update") user_role="contributor" OR user_role="author"🔗 References
- https://plugins.trac.wordpress.org/changeset/3112878/brizy/trunk/editor/api.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bb5f73c3-f40b-45d5-9947-c1a514d230f7?source=cve
- https://plugins.trac.wordpress.org/changeset/3112878/brizy/trunk/editor/api.php
- https://www.wordfence.com/threat-intel/vulnerabilities/id/bb5f73c3-f40b-45d5-9947-c1a514d230f7?source=cve
