CVE-2025-54050

6.5 MEDIUM

📋 TL;DR

This stored cross-site scripting (XSS) vulnerability in the Responsive Addons for Elementor WordPress plugin allows attackers to inject malicious scripts into web pages. When exploited, these scripts execute in victims' browsers, potentially stealing session cookies, redirecting users, or performing actions on their behalf. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Responsive Addons for Elementor WordPress plugin
Versions: All versions up to and including 1.7.3
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress with Elementor page builder installed. The vulnerability is in the plugin's input handling during web page generation.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

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

🟠

Likely Case

Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts and performing unauthorized actions.

🟢

If Mitigated

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

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Stored XSS vulnerabilities typically require some level of access to inject payloads, but once injected, the attack affects all users viewing the compromised page.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.7.4 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/responsive-addons-for-elementor/vulnerability/wordpress-responsive-addons-for-elementor-plugin-1-7-3-cross-site-scripting-xss-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Responsive Addons for Elementor'. 4. Click 'Update Now' if available, or manually update to version 1.7.4+. 5. Clear any caching plugins or CDN caches.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Responsive Addons for Elementor plugin until patched

wp plugin deactivate responsive-addons-for-elementor

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 wp-config.php: header("Content-Security-Policy: default-src 'self'; script-src 'self'");

🧯 If You Can't Patch

  • Remove or disable the Responsive Addons for Elementor plugin entirely
  • Implement web application firewall (WAF) rules to block XSS payloads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'Responsive Addons for Elementor' version

Check Version:

wp plugin get responsive-addons-for-elementor --field=version

Verify Fix Applied:

Verify plugin version is 1.7.4 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
  • Unexpected JavaScript in page content

Network Indicators:

  • HTTP requests containing <script> tags to plugin endpoints
  • Outbound connections to suspicious domains from your site

SIEM Query:

source="web_server" AND ("<script" OR "javascript:" OR "onload=" OR "onerror=") AND uri_path="/wp-content/plugins/responsive-addons-for-elementor/"

🔗 References

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