CVE-2023-47788
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in Automattic's Jetpack WordPress plugin that allows contributors to perform actions they shouldn't be authorized for. It affects all WordPress sites using Jetpack versions before 12.7. The vulnerability enables broken access control where contributor-level users can bypass intended restrictions.
💻 Affected Systems
- WordPress Jetpack Plugin
📦 What is this software?
Jetpack by Automattic
⚠️ Risk & Real-World Impact
Worst Case
Contributors could modify or delete content they shouldn't have access to, potentially defacing websites or removing critical content.
Likely Case
Contributors gaining unauthorized access to edit or manage content beyond their intended permissions, leading to content integrity issues.
If Mitigated
With proper role-based access controls and monitoring, impact would be limited to minor unauthorized content modifications that could be detected and reverted.
🎯 Exploit Status
Requires contributor-level access, making exploitation straightforward for users with those credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 12.7
Vendor Advisory: https://patchstack.com/database/vulnerability/jetpack/wordpress-jetpack-plugin-12-7-contributor-broken-access-control-vulnerability
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Jetpack and click 'Update Now' if available. 4. Alternatively, download Jetpack 12.7+ from WordPress.org and upload via FTP.
🔧 Temporary Workarounds
Disable Contributor Role
allTemporarily disable or restrict contributor user accounts until patching is complete.
Role Capability Restrictions
allUse role management plugins to further restrict contributor capabilities.
🧯 If You Can't Patch
- Implement strict monitoring of contributor user activities and content changes
- Apply additional access control layers through security plugins or custom code
🔍 How to Verify
Check if Vulnerable:
Check Jetpack version in WordPress admin under Plugins → Installed Plugins. If version is below 12.7, you are vulnerable.Check Version:
wp plugin list --name=jetpack --field=versionVerify Fix Applied:
Confirm Jetpack version is 12.7 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unauthorized content modifications by contributor users
- Unexpected POST requests to admin-ajax.php or REST API endpoints
Network Indicators:
- Unusual contributor-level API calls to WordPress admin endpoints
SIEM Query:
source="wordpress.log" AND (user_role="contributor" AND action IN ("edit_post", "delete_post", "publish_post"))