CVE-2024-12038
📋 TL;DR
This vulnerability allows authenticated WordPress users with contributor-level access or higher to inject malicious scripts via the 'buddyforms_nav' shortcode. The scripts are stored and execute whenever other users view affected pages, enabling session hijacking, defacement, or malware distribution. All WordPress sites using the BuddyForms plugin up to version 2.8.15 are affected.
💻 Affected Systems
- BuddyForms (Post Form – Registration Form – Profile Form for User Profiles – Frontend Content Forms for User Submissions (UGC))
📦 What is this software?
Buddyforms by Themekraft
⚠️ Risk & Real-World Impact
Worst Case
Attackers steal administrator credentials, take over the WordPress site, install backdoors, and compromise visitor data through session hijacking or credential theft.
Likely Case
Malicious contributors inject scripts to redirect users to phishing pages, display unwanted ads, or deface content on public-facing pages.
If Mitigated
With proper user role management and content review workflows, only trusted users can create content, limiting exploitation to accidental or insider threats.
🎯 Exploit Status
Exploitation requires contributor-level WordPress access. The vulnerability is in a widely used plugin, making automated attacks probable.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 2.8.16 or later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3244167/buddyforms/trunk/includes/shortcodes.php
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find BuddyForms and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable BuddyForms plugin
allTemporarily disable the vulnerable plugin until patched.
wp plugin deactivate buddyforms
Restrict user roles
allRemove contributor and author roles from untrusted users.
wp user remove-role <username> contributor
wp user remove-role <username> author
🧯 If You Can't Patch
- Remove contributor and author roles from all untrusted users, limiting post creation to editors and administrators only.
- Implement a web application firewall (WAF) with XSS protection rules to block malicious script injection attempts.
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for BuddyForms version. If version is 2.8.15 or lower, the site is vulnerable.Check Version:
wp plugin get buddyforms --field=versionVerify Fix Applied:
After updating, confirm BuddyForms version is 2.8.16 or higher in WordPress admin → Plugins → Installed Plugins.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress containing 'buddyforms_nav' shortcode with script tags or JavaScript payloads.
- Multiple page edits by contributor-level users in short timeframes.
Network Indicators:
- Outbound connections to suspicious domains from WordPress pages containing BuddyForms shortcodes.
- Unexpected JavaScript loading from WordPress page sources.
SIEM Query:
source="wordpress.log" AND ("buddyforms_nav" AND ("<script" OR "javascript:"))