CVE-2024-6709
📋 TL;DR
This vulnerability in the WordPress Sync Post With Other Site plugin allows authenticated attackers with Subscriber-level access or higher to create draft posts and modify existing posts without proper authorization. It affects all plugin versions up to and including 1.6. WordPress sites using this plugin are vulnerable if they have any registered users.
💻 Affected Systems
- WordPress Sync Post With Other Site plugin
📦 What is this software?
Sync Post With Other Site by Syncpostwithothersite
⚠️ Risk & Real-World Impact
Worst Case
Attackers could deface websites, inject malicious content, or create posts that appear legitimate but contain phishing links or malware, potentially compromising site visitors.
Likely Case
Low-privilege users could create unauthorized content or modify existing posts, leading to content integrity issues and potential SEO manipulation.
If Mitigated
With proper user access controls and monitoring, impact is limited to content manipulation by authenticated users, which can be detected and rolled back.
🎯 Exploit Status
Exploitation requires authenticated access but is straightforward once an attacker has valid credentials.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 1.7 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3128945/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Sync Post With Other Site' plugin. 4. Click 'Update Now' if available, or manually update to version 1.7+. 5. Verify plugin is active and functioning.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily deactivate the Sync Post With Other Site plugin until patched
wp plugin deactivate sync-post-with-other-site
Restrict user registration
allDisable new user registration to prevent attackers from obtaining accounts
Update WordPress Settings > General to uncheck 'Anyone can register'
🧯 If You Can't Patch
- Implement strict user access controls and monitor for unusual post creation/modification
- Regularly audit user accounts and remove unnecessary Subscriber-level accounts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Sync Post With Other Site version 1.6 or earlierCheck Version:
wp plugin get sync-post-with-other-site --field=versionVerify Fix Applied:
Verify plugin version is 1.7 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual post creation/modification by Subscriber-level users
- Multiple draft posts created in short timeframes
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with action=sps_add_update_post from non-admin users
SIEM Query:
source="wordpress.log" AND ("sps_add_update_post" OR "action=sps_add_update_post") AND user_role="subscriber"