CVE-2025-58025
📋 TL;DR
This stored cross-site scripting (XSS) vulnerability in the Master Slider WordPress plugin allows attackers to inject malicious scripts into web pages. When users view affected pages, the scripts execute in their browsers, potentially stealing credentials or performing unauthorized actions. All WordPress sites using Master Slider versions up to 3.11.0 are affected.
💻 Affected Systems
- Master Slider 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 users to malicious sites.
Likely Case
Attackers inject malicious JavaScript to steal user session cookies or credentials, potentially compromising user accounts.
If Mitigated
With proper input validation and output encoding, malicious scripts would be neutralized before reaching users.
🎯 Exploit Status
Exploitation requires ability to inject malicious content into the plugin's input fields, which typically requires some level of access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version after 3.11.0
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Master Slider and click 'Update Now'. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Disable Master Slider Plugin
WordPressTemporarily disable the vulnerable plugin until patched
wp plugin deactivate master-slider
🧯 If You Can't Patch
- Implement Content Security Policy (CSP) headers to restrict script execution
- Use web application firewall (WAF) rules to block XSS payloads
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin → Plugins → Installed Plugins for Master Slider versionCheck Version:
wp plugin get master-slider --field=versionVerify Fix Applied:
Verify Master Slider version is greater than 3.11.0 in WordPress plugins list📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to Master Slider endpoints
- Suspicious JavaScript in plugin-related database entries
Network Indicators:
- Malicious script tags in HTTP responses from Master Slider pages
SIEM Query:
source="wordpress" AND (plugin="master-slider" OR uri="/wp-content/plugins/master-slider/") AND (method="POST" OR status=200)