CVE-2024-3492
📋 TL;DR
This vulnerability allows authenticated WordPress users with contributor-level access or higher to inject malicious scripts into pages using the Events Manager plugin's shortcodes. When other users view these compromised pages, the scripts execute in their browsers, potentially stealing session cookies or performing unauthorized actions. All WordPress sites using Events Manager plugin versions up to 6.4.7.3 are affected.
💻 Affected Systems
- Events Manager – Calendar, Bookings, Tickets, and more! WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over the WordPress site, deface content, or redirect users to malicious sites, potentially leading to complete site compromise and data theft.
Likely Case
Malicious contributors or compromised accounts inject scripts that steal user session data, display unwanted content, or redirect users to phishing pages, affecting site visitors and other users.
If Mitigated
With proper user access controls and content security policies, impact is limited to minor content manipulation within the contributor's own posts, with no privilege escalation or data theft.
🎯 Exploit Status
Exploitation requires contributor-level WordPress access. The vulnerability is in widely used shortcodes, making exploitation straightforward for authenticated attackers.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 6.4.7.4 and later
Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3101326/events-manager
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Events Manager' and click 'Update Now'. 4. Verify plugin version is 6.4.7.4 or higher.
🔧 Temporary Workarounds
Remove Contributor Access
allTemporarily restrict contributor-level users from creating or editing content until patch is applied
Implement Content Security Policy
allAdd CSP headers to prevent script execution from untrusted sources
Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Or add to wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");
🧯 If You Can't Patch
- Disable the Events Manager plugin completely
- Implement strict user access controls and audit all contributor accounts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Installed Plugins, find Events Manager and verify version is 6.4.7.3 or lowerCheck Version:
wp plugin list --name='events-manager' --field=version (if WP-CLI installed)Verify Fix Applied:
After updating, verify Events Manager plugin version shows 6.4.7.4 or higher in WordPress admin📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode usage in post/page edits
- Multiple failed login attempts followed by successful contributor login
- Posts/pages with unusual script tags in content
Network Indicators:
- Unexpected external script loads from WordPress pages
- Suspicious outbound connections after page views
SIEM Query:
source="wordpress" AND (event="post_updated" OR event="page_updated") AND user_role="contributor" AND content CONTAINS "[event" OR "[location" OR "[event_category"🔗 References
- https://plugins.trac.wordpress.org/changeset/3101326/events-manager
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a767f65e-bc7d-4576-af78-b77bd23dc089?source=cve
- https://plugins.trac.wordpress.org/changeset/3101326/events-manager
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a767f65e-bc7d-4576-af78-b77bd23dc089?source=cve
