CVE-2024-34570

5.9 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Xpro Elementor Addons WordPress plugin allows attackers to inject malicious scripts into web pages. When users view pages containing the malicious content, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Xpro Elementor Addons WordPress Plugin
Versions: All versions up to and including 1.4.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with Elementor page builder and the Xpro Elementor Addons plugin installed and active.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator session cookies, take over WordPress sites, deface websites, redirect visitors to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers inject malicious JavaScript that steals user session cookies or credentials when users visit compromised pages, leading to account compromise.

🟢

If Mitigated

With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers, preventing exploitation.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type is well-understood and weaponization is likely.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.4.4 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/xpro-elementor-addons/wordpress-xpro-elementor-addons-plugin-1-4-3-cross-site-scripting-xss-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Xpro Elementor Addons' and click 'Update Now'. 4. Verify update to version 1.4.4 or higher.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Xpro Elementor Addons plugin until patched

wp plugin deactivate xpro-elementor-addons

Implement Content Security Policy

all

Add CSP headers to restrict script execution sources

Add to .htaccess: Header set Content-Security-Policy "default-src 'self'; script-src 'self'"
Add to nginx config: add_header Content-Security-Policy "default-src 'self'; script-src 'self'";

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block XSS payloads
  • Restrict plugin access to trusted administrators only

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin > Plugins > Installed Plugins for Xpro Elementor Addons version 1.4.3 or lower

Check Version:

wp plugin get xpro-elementor-addons --field=version

Verify Fix Applied:

Verify plugin version is 1.4.4 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to plugin endpoints with script tags
  • Multiple failed XSS attempts in web server logs

Network Indicators:

  • Outbound connections to suspicious domains from your WordPress site
  • Unexpected JavaScript execution in browser developer tools

SIEM Query:

source="web_server" AND ("xpro-elementor-addons" OR "script" OR "javascript") AND status=200

🔗 References

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