CVE-2024-13678
📋 TL;DR
The R3W InstaFeed WordPress plugin through version 1.0 contains a reflected cross-site scripting (XSS) vulnerability. Attackers can inject malicious scripts via unsanitized parameters, which execute when administrators or other high-privilege users view affected pages. This affects WordPress sites using the vulnerable plugin version.
💻 Affected Systems
- R3W InstaFeed WordPress Plugin
📦 What is this software?
R3w Instafeed by Rcabarreto1
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, perform actions as administrators (like installing backdoors), or redirect users to malicious sites, potentially leading to full site compromise.
Likely Case
Attackers would typically use this to steal admin credentials or session tokens, then gain unauthorized access to the WordPress admin dashboard.
If Mitigated
With proper web application firewalls and security headers, the attack would be blocked or mitigated, preventing successful exploitation.
🎯 Exploit Status
Reflected XSS vulnerabilities are commonly exploited and require minimal technical skill. Attackers need to trick authenticated users into clicking malicious links.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.1 or later
Vendor Advisory: https://wpscan.com/vulnerability/ba759796-a152-4f13-a474-f0368b4bc1f6/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find R3W InstaFeed and click 'Update Now' if available. 4. If no update is available, deactivate and delete the plugin, then install the latest version from the WordPress repository.
🔧 Temporary Workarounds
Web Application Firewall (WAF)
allConfigure WAF rules to block XSS payloads in query parameters
Content Security Policy (CSP)
allImplement CSP headers to restrict script execution sources
Header set Content-Security-Policy "default-src 'self'; script-src 'self'" in .htaccess or server config
🧯 If You Can't Patch
- Deactivate and remove the R3W InstaFeed plugin immediately
- Implement strict input validation and output encoding for all user-controlled parameters
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin > Plugins > Installed Plugins for R3W InstaFeed version 1.0 or earlierCheck Version:
wp plugin list --name=instafeed --field=version (if WP-CLI installed)Verify Fix Applied:
Verify plugin version is 1.0.1 or later in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual GET requests with script tags or JavaScript in query parameters
- Multiple failed login attempts following suspicious URL visits
Network Indicators:
- HTTP requests containing <script> tags or JavaScript in URL parameters
- Outbound connections to unknown domains after admin page visits
SIEM Query:
source="wordpress.log" AND ("<script" OR "javascript:" OR "onerror=" OR "onload=") AND uri_path="/wp-admin/"