CVE-2024-12749
📋 TL;DR
This vulnerability in the Competition Form WordPress plugin allows attackers to inject malicious scripts via unsanitized parameters, which execute when viewed by administrators or other high-privilege users. It affects WordPress sites running Competition Form plugin version 2.0 and earlier. The attack requires tricking authenticated users into clicking a specially crafted link.
💻 Affected Systems
- Competition Form WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Administrator account compromise leading to full site takeover, data theft, or malware distribution to visitors.
Likely Case
Session hijacking of admin accounts, defacement, or credential theft through phishing.
If Mitigated
Limited impact if proper input validation and output escaping are implemented, or if the plugin is disabled.
🎯 Exploit Status
Exploitation requires social engineering to trick authenticated users into clicking malicious links. No authentication bypass needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 2.0
Vendor Advisory: https://wpscan.com/vulnerability/478316b9-9f47-4aa6-92c6-03879f16a3e5/
Restart Required: No
Instructions:
1. Update Competition Form plugin to latest version via WordPress admin panel. 2. Verify plugin version is above 2.0. 3. Test competition forms for functionality.
🔧 Temporary Workarounds
Disable Competition Form Plugin
allTemporarily disable the plugin until patched to eliminate vulnerability.
Implement WAF Rules
allConfigure web application firewall to block XSS payloads targeting competition form parameters.
🧯 If You Can't Patch
- Restrict plugin access to trusted users only
- Implement Content Security Policy (CSP) headers to mitigate script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Competition Form version. If version is 2.0 or lower, vulnerable.Check Version:
wp plugin list --name='competition-form' --field=versionVerify Fix Applied:
Verify plugin version is above 2.0 in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual GET/POST requests with script tags or JavaScript in competition form parameters
- Multiple failed login attempts following suspicious parameter submissions
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in competition form parameters
- Unusual outbound connections from WordPress admin sessions
SIEM Query:
source="wordpress.log" AND (uri="*competition*" AND (param="*<script>*" OR param="*javascript:*"))