CVE-2024-10584

5.4 MEDIUM

📋 TL;DR

The DirectoryPress WordPress plugin is vulnerable to stored XSS via SVG file uploads due to insufficient input sanitization. Authenticated attackers with author-level access can inject malicious scripts that execute when users view uploaded SVG files. When DirectoryPress Frontend is installed, unauthenticated users can also exploit this vulnerability.

💻 Affected Systems

Products:
  • DirectoryPress – Business Directory And Classified Ad Listing plugin for WordPress
Versions: All versions up to and including 3.6.16
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: When DirectoryPress Frontend is installed, the vulnerability becomes accessible to unauthenticated users.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could steal admin credentials, deface websites, redirect users to malicious sites, or install backdoors for persistent access.

🟠

Likely Case

Attackers will inject malicious scripts to steal user session cookies, redirect users to phishing pages, or display unwanted content.

🟢

If Mitigated

With proper input validation and output escaping, SVG files would be safely handled without script execution.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires uploading a malicious SVG file containing JavaScript. When DirectoryPress Frontend is installed, no authentication is required.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 3.6.17

Vendor Advisory: https://plugins.trac.wordpress.org/changeset/3205071/directorypress/trunk/includes/directorypress_svg.php

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find DirectoryPress plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 3.6.17+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable SVG uploads via .htaccess

linux

Prevent SVG file uploads at the web server level

Add to .htaccess: <FilesMatch "\.svg$">
    Order Allow,Deny
    Deny from all
</FilesMatch>

Remove upload capability from low-privilege users

all

Restrict file upload permissions to administrators only

Use WordPress role management plugins or custom code to remove upload_files capability from author and editor roles

🧯 If You Can't Patch

  • Temporarily disable the DirectoryPress plugin until patched
  • Implement web application firewall (WAF) rules to block malicious SVG uploads

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → DirectoryPress version. If version is 3.6.16 or lower, you are vulnerable.

Check Version:

wp plugin list --name=directorypress --field=version

Verify Fix Applied:

After updating, verify plugin version shows 3.6.17 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unusual SVG file uploads, especially with script tags or JavaScript content
  • Multiple failed upload attempts with modified SVG files

Network Indicators:

  • POST requests to upload endpoints with SVG files containing script tags
  • Unusual outbound connections after SVG file access

SIEM Query:

source="web_server" AND (uri_path="/wp-content/uploads/" AND file_extension="svg") AND (content="<script>" OR content="javascript:")

🔗 References

📤 Share & Export