CVE-2023-34182
📋 TL;DR
This CSRF vulnerability in the LH Password Changer WordPress plugin allows attackers to trick authenticated administrators into performing unauthorized password changes. It affects WordPress sites using the plugin version 1.55 or earlier. Attackers can exploit this to take over administrator accounts.
💻 Affected Systems
- WordPress LH Password Changer plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete site takeover through administrator account compromise, leading to data theft, defacement, or malware injection.
Likely Case
Administrator account takeover allowing content manipulation, plugin/theme installation, or user privilege escalation.
If Mitigated
Limited impact if CSRF tokens are properly implemented or administrators use separate browser sessions for admin tasks.
🎯 Exploit Status
Exploitation requires tricking an authenticated administrator into clicking a malicious link or visiting a compromised page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.56 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'LH Password Changer'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.56+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate lh-password-changer
Implement CSRF protection
allAdd custom CSRF tokens to plugin forms if source code access available
🧯 If You Can't Patch
- Restrict admin access to trusted networks only
- Use browser extensions that block CSRF attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for LH Password Changer version
Check Version:
wp plugin get lh-password-changer --field=version
Verify Fix Applied:
Confirm plugin version is 1.56 or higher in WordPress admin
📡 Detection & Monitoring
Log Indicators:
- Multiple password change attempts for admin accounts
- Unusual admin activity from unexpected IPs
Network Indicators:
- HTTP POST requests to /wp-admin/admin-ajax.php with password change parameters
SIEM Query:
source="wordpress.log" AND "action=change_password" AND "plugin=lh-password-changer"
🔗 References
- https://patchstack.com/database/vulnerability/lh-password-changer/wordpress-lh-password-changer-plugin-1-55-cross-site-request-forgery-csrf-vulnerability?_s_id=cve
- https://patchstack.com/database/vulnerability/lh-password-changer/wordpress-lh-password-changer-plugin-1-55-cross-site-request-forgery-csrf-vulnerability?_s_id=cve