CVE-2024-39644
📋 TL;DR
This stored XSS vulnerability in the Black Widgets For Elementor 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 session cookies or performing actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.
💻 Affected Systems
- Black Widgets For Elementor WordPress Plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator session cookies, take over WordPress sites, deface websites, or redirect visitors to malicious sites.
Likely Case
Attackers inject malicious scripts that steal user session data or credentials when users visit compromised pages.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users' browsers.
🎯 Exploit Status
Stored XSS vulnerabilities are commonly exploited. While no public PoC is confirmed, the vulnerability type is well-understood and easily weaponized.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.3.6 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Black Widgets For Elementor'. 4. Click 'Update Now' if available. 5. Alternatively, download version 1.3.6+ from WordPress.org and manually update.
🔧 Temporary Workarounds
Disable vulnerable plugin
allTemporarily disable the Black Widgets For Elementor plugin until patched
wp plugin deactivate black-widgets
Implement WAF rules
allAdd web application firewall rules to block XSS payloads targeting this plugin
🧯 If You Can't Patch
- Remove the Black Widgets For Elementor plugin entirely and use alternative Elementor widgets
- Implement strict Content Security Policy (CSP) headers to mitigate script execution
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Black Widgets For Elementor versionCheck Version:
wp plugin get black-widgets --field=versionVerify Fix Applied:
Verify plugin version is 1.3.6 or higher in WordPress admin panel📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress admin-ajax.php with script tags
- Multiple failed attempts to access plugin files with XSS payloads
Network Indicators:
- HTTP requests containing script tags or JavaScript payloads targeting plugin endpoints
- Unexpected iframe or script tags in page responses
SIEM Query:
source="wordpress" AND (uri_path="*black-widgets*" OR uri_path="*admin-ajax*") AND (http_method="POST" AND (content="*<script>*" OR content="*javascript:*"))