CVE-2024-9861
📋 TL;DR
The Miniorange OTP Verification with Firebase WordPress plugin has an authentication bypass vulnerability that allows unauthenticated attackers to log in as any existing user by exploiting missing token validation during OTP login. Attackers only need to know the target user's phone number to gain unauthorized access, potentially compromising administrator accounts. All WordPress sites using vulnerable plugin versions are affected.
💻 Affected Systems
- Miniorange OTP Verification with Firebase WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain administrator access, leading to complete site compromise, data theft, malware injection, defacement, or ransomware deployment.
Likely Case
Attackers compromise user accounts to steal sensitive data, perform unauthorized actions, or escalate privileges to administrator level.
If Mitigated
With proper monitoring and limited user accounts, impact is reduced to unauthorized access of non-privileged accounts with minimal data exposure.
🎯 Exploit Status
Exploitation requires knowing target phone numbers but is technically simple with publicly available code references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.6.1
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3169869/miniorange-firebase-sms-otp-verification
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Miniorange OTP Verification with Firebase'. 4. Click 'Update Now' if update available. 5. Alternatively, download version 3.6.1+ from WordPress repository and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the plugin until patched, which will break OTP login functionality.
wp plugin deactivate miniorange-firebase-sms-otp-verification
Restrict access to login endpoints
linuxUse web application firewall or .htaccess to restrict access to plugin login endpoints.
# Add to .htaccess: RewriteRule ^wp-content/plugins/miniorange-firebase-sms-otp-verification/.*\.php$ - [F,L]
🧯 If You Can't Patch
- Implement IP-based restrictions on WordPress admin and login pages
- Enable two-factor authentication using a different, secure plugin
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for 'Miniorange OTP Verification with Firebase' version ≤3.6.0Check Version:
wp plugin get miniorange-firebase-sms-otp-verification --field=versionVerify Fix Applied:
Confirm plugin version is 3.6.1 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual login patterns from unknown IPs
- Multiple failed OTP attempts followed by successful login
- Administrator logins from unexpected locations
Network Indicators:
- POST requests to /wp-content/plugins/miniorange-firebase-sms-otp-verification/handler/forms/class-loginform.php with manipulated parameters
SIEM Query:
source="wordpress" AND (uri_path="*miniorange-firebase-sms-otp-verification*" AND http_method="POST") AND (status=200 OR status=302)🔗 References
- https://plugins.trac.wordpress.org/browser/miniorange-firebase-sms-otp-verification/tags/3.6.0/handler/forms/class-loginform.php#L144
- https://plugins.trac.wordpress.org/browser/miniorange-firebase-sms-otp-verification/tags/3.6.0/handler/forms/class-loginform.php#L190
- https://plugins.trac.wordpress.org/changeset/3169869/miniorange-firebase-sms-otp-verification#file3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/04045ec3-dd8e-4ac5-bd73-eef6205ecc62?source=cve
