CVE-2024-9416
📋 TL;DR
The Modula Image Gallery WordPress plugin (versions ≤5.0.36) contains a stored cross-site scripting vulnerability in its FancyBox JavaScript library. Authenticated attackers with contributor-level access or higher can inject malicious scripts that execute when users view affected pages. This affects WordPress sites using vulnerable versions of the plugin.
💻 Affected Systems
- Modula Image Gallery WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users.
Likely Case
Attackers with contributor access inject malicious scripts to steal session cookies or redirect users to phishing pages.
If Mitigated
With proper access controls limiting contributor privileges and input validation, impact is reduced to potential defacement of non-critical pages.
🎯 Exploit Status
Exploitation requires authenticated access but is technically simple once access is obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 5.0.37
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3160235/modula-best-grid-gallery
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Modula Image Gallery. 4. Click 'Update Now' if available. 5. Alternatively, download version 5.0.37+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable plugin
allTemporarily disable the Modula Image Gallery plugin until patched
wp plugin deactivate modula-best-grid-gallery
Restrict user roles
allLimit contributor-level access to trusted users only
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to block XSS payloads
- Apply Content Security Policy (CSP) headers to restrict script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Modula Image Gallery → Version number. If ≤5.0.36, vulnerable.Check Version:
wp plugin get modula-best-grid-gallery --field=versionVerify Fix Applied:
Confirm plugin version is 5.0.37 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to gallery-related endpoints
- Suspicious JavaScript in gallery content
Network Indicators:
- Unexpected script tags in gallery page responses
- External script loads from gallery pages
SIEM Query:
source="wordpress" AND (plugin="modula" OR uri_path="/wp-content/plugins/modula") AND (method="POST" OR status=200) AND size>5000