CVE-2024-5763

6.4 MEDIUM

📋 TL;DR

This vulnerability allows authenticated WordPress users with contributor-level access or higher to inject malicious scripts into website pages via the Video widget in The Plus Addons for Elementor plugin. When visitors view compromised pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using vulnerable plugin versions are affected.

💻 Affected Systems

Products:
  • The Plus Addons for Elementor – Elementor Addons, Page Templates, Widgets, Mega Menu, WooCommerce
Versions: All versions up to and including 5.6.2
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with the vulnerable plugin installed. Contributor-level access or higher needed for exploitation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal administrator credentials, redirect users to malicious sites, deface websites, or perform actions on behalf of authenticated users, potentially leading to complete site compromise.

🟠

Likely Case

Attackers with contributor accounts inject malicious scripts that steal visitor session cookies or credentials, leading to account takeover and further site manipulation.

🟢

If Mitigated

With proper user access controls and content security policies, impact is limited to defacement or limited data exposure from affected pages only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires authenticated access but is technically simple once an attacker has contributor-level credentials.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 5.6.3 and later

Vendor Advisory: https://wordpress.org/plugins/the-plus-addons-for-elementor-page-builder/#developers

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'The Plus Addons for Elementor'. 4. Click 'Update Now' if available, or manually update to version 5.6.3+. 5. Clear any caching plugins or CDN caches.

🔧 Temporary Workarounds

Restrict User Roles

all

Temporarily limit contributor-level access or review existing contributor accounts for suspicious activity.

Content Security Policy

linux

Implement CSP headers to restrict script execution sources and mitigate XSS impact.

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

🧯 If You Can't Patch

  • Disable the Video widget feature in plugin settings if possible.
  • Remove contributor-level access for untrusted users and audit existing contributor accounts.

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'The Plus Addons for Elementor' version. If version is 5.6.2 or lower, you are vulnerable.

Check Version:

wp plugin list --name='the-plus-addons-for-elementor-page-builder' --field=version (WP-CLI)

Verify Fix Applied:

After updating, verify plugin version shows 5.6.3 or higher in WordPress admin plugins list.

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to wp-admin/admin-ajax.php with video_date parameters
  • Multiple page edits by contributor-level users in short timeframes

Network Indicators:

  • Script tags with unusual sources in page responses
  • External JavaScript loading from unexpected domains

SIEM Query:

source="wordpress.log" AND ("video_date" OR "tp_video_player") AND status=200

🔗 References

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