CVE-2024-5440
📋 TL;DR
The If-So Dynamic Content Personalization WordPress plugin before version 1.8.0.3 contains a stored cross-site scripting (XSS) vulnerability. Users with contributor role or higher can inject malicious scripts via shortcode attributes, which execute when other users view affected pages. This affects WordPress sites using vulnerable plugin versions.
💻 Affected Systems
- If-So Dynamic Content Personalization WordPress plugin
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers with contributor access could steal administrator credentials, deface websites, redirect users to malicious sites, or install backdoors leading to complete site compromise.
Likely Case
Malicious contributors inject tracking scripts, display unwanted ads, or perform limited session hijacking against users viewing affected content.
If Mitigated
With proper user role management and content review workflows, impact is limited to potential content defacement within contributor-posted content only.
🎯 Exploit Status
Exploitation requires contributor-level access. Proof of concept available through WPScan references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 1.8.0.3
Vendor Advisory: https://wpscan.com/vulnerability/52fdc271-96f2-4e25-9df2-29a3ce06328c/
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'If-So Dynamic Content Personalization'. 4. Click 'Update Now' if update available. 5. If no update appears, manually download version 1.8.0.3+ from WordPress repository.
🔧 Temporary Workarounds
Temporary Plugin Deactivation
allDisable vulnerable plugin until patch can be applied
wp plugin deactivate if-so-dynamic-content-personalization
Restrict Contributor Privileges
allTemporarily downgrade contributor users to subscriber role
wp user update <user_id> --role=subscriber
🧯 If You Can't Patch
- Implement strict content review workflow requiring administrator approval for all contributor posts
- Install web application firewall (WAF) with XSS protection rules
🔍 How to Verify
Check if Vulnerable:
Check plugin version in WordPress admin under Plugins > Installed Plugins. If version is below 1.8.0.3, system is vulnerable.Check Version:
wp plugin get if-so-dynamic-content-personalization --field=versionVerify Fix Applied:
Verify plugin version shows 1.8.0.3 or higher. Test shortcode functionality to ensure proper input validation.📡 Detection & Monitoring
Log Indicators:
- Unusual shortcode modifications in post revisions
- Multiple content updates from contributor accounts
Network Indicators:
- Script tags with unusual attributes in HTTP responses
- External script loads from contributor posts
SIEM Query:
source="wordpress" AND (event="plugin_update" AND plugin_name="if-so-dynamic-content-personalization" AND version<"1.8.0.3") OR (event="post_update" AND user_role="contributor" AND content CONTAINS "<script>")