CVE-2024-8369

5.3 MEDIUM

📋 TL;DR

The EventPrime WordPress plugin has an authorization bypass vulnerability that allows unauthenticated attackers to view private or password-protected events. This affects all WordPress sites using EventPrime plugin versions up to 4.0.4.3. The vulnerability stems from missing authorization checks in the plugin's event access controls.

💻 Affected Systems

Products:
  • EventPrime – Events Calendar, Bookings and Tickets plugin for WordPress
Versions: All versions up to and including 4.0.4.3
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations using the vulnerable plugin versions. No special configuration required for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Sensitive event information (private meetings, confidential gatherings, paid events) becomes publicly accessible, potentially exposing business operations, personal data, or proprietary information.

🟠

Likely Case

Unauthorized users can view private events they shouldn't have access to, compromising event privacy and potentially exposing attendee information or event details.

🟢

If Mitigated

With proper access controls and monitoring, impact is limited to information disclosure of non-critical private events.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

The vulnerability is simple to exploit as it requires no authentication and involves accessing private event URLs directly.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 4.0.4.4 or later

Vendor Advisory: https://wordpress.org/plugins/eventprime-event-calendar-management/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find EventPrime plugin
4. Click 'Update Now' if update is available
5. Alternatively, download version 4.0.4.4+ from WordPress repository and manually update

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the EventPrime plugin until patched to prevent exploitation

wp plugin deactivate eventprime-event-calendar-management

Access Restriction via .htaccess

linux

Add IP-based restrictions to event pages if using Apache

Order Deny,Allow
Deny from all
Allow from 192.168.1.0/24

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block unauthorized access to private event URLs
  • Monitor access logs for unusual patterns of event page access and implement rate limiting

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → EventPrime version. If version is 4.0.4.3 or lower, system is vulnerable.

Check Version:

wp plugin get eventprime-event-calendar-management --field=version

Verify Fix Applied:

After updating, verify plugin version shows 4.0.4.4 or higher. Test accessing private events without proper credentials to confirm fix.

📡 Detection & Monitoring

Log Indicators:

  • Multiple 200 OK responses to private event URLs from unauthenticated users
  • Access to /wp-content/plugins/eventprime/ paths without authentication

Network Indicators:

  • HTTP GET requests to event pages without authentication cookies or session tokens

SIEM Query:

source="web_access_logs" AND (uri="/event/" OR uri="/events/") AND status=200 AND NOT (user_agent="bot" OR user_agent="crawler") AND NOT (cookie="wordpress_logged_in" OR auth_token=*)

🔗 References

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