CVE-2023-49756
📋 TL;DR
This CVE describes a Missing Authorization vulnerability in the Themewinter Eventin WordPress plugin that allows authenticated users to exploit incorrectly configured access control security levels. The vulnerability affects all Eventin plugin versions up to 3.3.52, potentially allowing users to perform actions beyond their intended permissions.
💻 Affected Systems
- Themewinter Eventin WordPress Plugin
📦 What is this software?
Eventin by Themewinter
⚠️ Risk & Real-World Impact
Worst Case
Authenticated attackers could escalate privileges, modify plugin settings, or access administrative functions they shouldn't have access to, potentially leading to site takeover or data compromise.
Likely Case
Authenticated users (including low-privilege accounts) could dismiss notices or perform other administrative actions they're not authorized for, potentially disrupting site functionality.
If Mitigated
With proper access controls and least privilege principles, impact would be limited to minor functionality abuse by authenticated users.
🎯 Exploit Status
Exploitation requires authenticated access. The specific vulnerability involves notice dismissal functionality that lacks proper authorization checks.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.3.53 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel
2. Navigate to Plugins > Installed Plugins
3. Find 'Eventin' plugin
4. Click 'Update Now' if update is available
5. Alternatively, download version 3.3.53+ from WordPress repository and manually update
🔧 Temporary Workarounds
Disable Eventin Plugin
allTemporarily disable the vulnerable plugin until patched
wp plugin deactivate eventin
Restrict User Registration
allLimit new user registrations to reduce attack surface
Settings > General > Membership: Uncheck 'Anyone can register'
🧯 If You Can't Patch
- Implement strict access controls and review user permissions regularly
- Monitor logs for unusual notice dismissal activities by non-admin users
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Eventin version. If version is 3.3.52 or lower, system is vulnerable.Check Version:
wp plugin get eventin --field=versionVerify Fix Applied:
Verify Eventin plugin version is 3.3.53 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Multiple notice dismissal requests from non-admin users
- Unauthorized access attempts to admin-ajax.php with eventin-related actions
Network Indicators:
- POST requests to /wp-admin/admin-ajax.php with 'action' parameter containing 'eventin' from non-admin IPs
SIEM Query:
source="wordpress.log" AND ("notice_dismiss" OR "eventin") AND user_role!="administrator"