CVE-2024-4422
📋 TL;DR
The Comparison Slider WordPress plugin has a stored cross-site scripting vulnerability in versions up to 1.0.5. Authenticated attackers with subscriber-level access or higher can inject malicious scripts via the slider title parameter, which execute when users view affected pages. This affects all WordPress sites using vulnerable versions of this plugin.
💻 Affected Systems
- Comparison Slider WordPress Plugin
📦 What is this software?
Comparison Slider by Comparisonslider
⚠️ Risk & Real-World Impact
Worst Case
Attackers could steal administrator credentials, redirect users to malicious sites, deface websites, or install backdoors for persistent access.
Likely Case
Attackers with subscriber accounts inject malicious scripts to steal user session cookies or display phishing content to visitors.
If Mitigated
With proper input validation and output escaping, no script injection would occur, limiting impact to data integrity issues.
🎯 Exploit Status
Exploitation requires authenticated access (subscriber role minimum). The vulnerability is straightforward to exploit once authenticated.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.0.6 or later
Vendor Advisory: https://wordpress.org/plugins/comparison-slider/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Comparison Slider plugin. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.0.6+ from WordPress repository and replace plugin files.
🔧 Temporary Workarounds
Disable Plugin
allTemporarily disable the Comparison Slider plugin until patched
wp plugin deactivate comparison-slider
Restrict User Roles
allTemporarily restrict subscriber-level users from accessing content creation features
🧯 If You Can't Patch
- Remove subscriber role from untrusted users
- Implement web application firewall with XSS filtering rules
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel → Plugins → Comparison Slider → Version. If version is 1.0.5 or lower, you are vulnerable.Check Version:
wp plugin get comparison-slider --field=versionVerify Fix Applied:
After updating, verify plugin version shows 1.0.6 or higher in WordPress admin panel.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to slider title parameters
- Multiple failed login attempts followed by successful subscriber login
Network Indicators:
- Outbound connections to suspicious domains after viewing slider pages
- Unusual JavaScript payloads in HTTP requests
SIEM Query:
source="wordpress.log" AND "comparison-slider" AND ("title" OR "slider") AND ("script" OR "javascript" OR "onload" OR "onerror")🔗 References
- https://wordpress.org/plugins/comparison-slider/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0907c74e-0bb8-4761-aabf-79d880c78415?source=cve
- https://wordpress.org/plugins/comparison-slider/
- https://www.wordfence.com/threat-intel/vulnerabilities/id/0907c74e-0bb8-4761-aabf-79d880c78415?source=cve
