CVE-2024-8243
📋 TL;DR
This vulnerability in the WordPress Upgrade Time Out Plugin allows attackers to perform Cross-Site Request Forgery (CSRF) attacks that inject stored XSS payloads. Attackers can trick logged-in administrators into executing malicious actions without their knowledge. WordPress sites using this plugin through version 1.0 are affected.
💻 Affected Systems
- WordPress Upgrade Time Out Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete site compromise through admin account takeover, data theft, defacement, or malware distribution to visitors.
Likely Case
Site defacement, credential theft from visitors, or injection of malicious scripts that steal session cookies.
If Mitigated
Limited impact with proper CSRF protections and content security policies in place.
🎯 Exploit Status
Exploitation requires social engineering to trick admin, but technical complexity is low once admin visits malicious page.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not available
Vendor Advisory: https://wpscan.com/vulnerability/8e1e2d8d-41aa-49bc-95d5-dae75be788d5/
Restart Required: No
Instructions:
1. Deactivate and delete the Upgrade Time Out Plugin. 2. Check for any injected malicious scripts in database. 3. Consider alternative plugins for similar functionality.
🔧 Temporary Workarounds
Disable vulnerable plugin
allDeactivate and remove the vulnerable plugin from WordPress
wp plugin deactivate upgrade-time-out
wp plugin delete upgrade-time-out
Implement CSRF protection headers
allAdd Content Security Policy and anti-CSRF tokens
Add to .htaccess: Header set X-Frame-Options "DENY"
Header set Content-Security-Policy "default-src 'self'"
🧯 If You Can't Patch
- Restrict admin access to trusted networks only
- Implement web application firewall with XSS and CSRF protection rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for 'Upgrade Time Out' version 1.0 or earlierCheck Version:
wp plugin list --name=upgrade-time-out --field=versionVerify Fix Applied:
Confirm plugin is deactivated and removed from plugins directory📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to wp-admin/admin-ajax.php
- Admin users executing unexpected plugin actions
- Script tags with suspicious content in database
Network Indicators:
- Requests with suspicious parameters to plugin endpoints
- Cross-origin requests to admin functions
SIEM Query:
source="wordpress.log" AND ("upgrade-time-out" OR "admin-ajax.php") AND status=200 AND method=POST