CVE-2024-5149
📋 TL;DR
The BuddyForms WordPress plugin has an email verification bypass vulnerability due to insufficiently random activation codes. Unauthenticated attackers can bypass email verification requirements, potentially creating unauthorized user accounts. All WordPress sites using BuddyForms versions up to 2.8.9 are affected.
💻 Affected Systems
- BuddyForms WordPress Plugin
📦 What is this software?
Buddyforms by Themekraft
⚠️ Risk & Real-World Impact
Worst Case
Attackers create unlimited unauthorized user accounts with verified status, potentially gaining access to restricted content or performing actions reserved for verified users.
Likely Case
Attackers bypass email verification to create fake accounts, potentially enabling spam, abuse, or unauthorized access to user-only features.
If Mitigated
With proper monitoring and account review processes, unauthorized accounts can be detected and removed before causing significant harm.
🎯 Exploit Status
The vulnerability is straightforward to exploit by guessing or brute-forcing activation codes due to insufficient randomness.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.9.0 or later
Vendor Advisory: https://wordpress.org/plugins/buddyforms/#developers
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find BuddyForms and click 'Update Now'. 4. Alternatively, download version 2.9.0+ from WordPress plugin repository and manually update.
🔧 Temporary Workarounds
Disable BuddyForms Email Verification
allTemporarily disable email verification feature in BuddyForms settings until patched
Disable User Registration
allTemporarily disable new user registration in WordPress settings
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block suspicious user registration patterns
- Enable detailed logging of user registration attempts and regularly review for anomalies
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for BuddyForms version. If version is 2.8.9 or lower, you are vulnerable.Check Version:
wp plugin list --name=buddyforms --field=version (if WP-CLI installed)Verify Fix Applied:
After updating, verify BuddyForms version is 2.9.0 or higher in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual spike in user registrations
- Multiple registration attempts from same IP
- User accounts created without corresponding email verification logs
Network Indicators:
- HTTP POST requests to registration endpoints with predictable activation codes
SIEM Query:
source="wordpress.log" AND ("user registration" OR "new user") | stats count by src_ip🔗 References
- https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.8.9/includes/wp-insert-user.php#L334
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a5c8d361-698b-4abd-bcdd-0361d3fd10c5?source=cve
- https://plugins.trac.wordpress.org/browser/buddyforms/tags/2.8.9/includes/wp-insert-user.php#L334
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a5c8d361-698b-4abd-bcdd-0361d3fd10c5?source=cve
