CVE-2024-13815
📋 TL;DR
The Listingo WordPress theme allows unauthenticated attackers to execute arbitrary shortcodes due to improper input validation. This vulnerability affects all versions up to 3.2.7, potentially enabling attackers to run malicious code on vulnerable WordPress sites.
💻 Affected Systems
- Listingo WordPress Theme
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Remote code execution leading to complete site compromise, data theft, malware injection, or site defacement.
Likely Case
Unauthenticated attackers executing WordPress shortcodes to inject malicious content, redirect users, or perform limited administrative actions.
If Mitigated
Limited impact if proper web application firewalls and input validation are in place.
🎯 Exploit Status
Exploitation requires sending crafted requests to vulnerable endpoints.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Version 3.2.8 or later
Vendor Advisory: https://themeforest.net/item/listingo-business-listing-wordpress-directory-theme/20617051
Restart Required: No
Instructions:
1. Update the Listingo theme to version 3.2.8 or later via WordPress admin panel. 2. Verify the update completed successfully. 3. Clear any caching plugins or CDN caches.
🔧 Temporary Workarounds
Web Application Firewall
allDeploy a WAF to block malicious shortcode execution attempts.
Disable Vulnerable Endpoints
linuxBlock access to the vulnerable action endpoint via .htaccess or web server configuration.
# Add to .htaccess
RewriteCond %{QUERY_STRING} action=.*do_shortcode.* [NC]
RewriteRule ^ - [F]
🧯 If You Can't Patch
- Temporarily switch to a different WordPress theme
- Implement strict input validation and sanitization for all user inputs
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Appearance > Themes for Listingo theme version.Check Version:
wp theme list --field=name,version --format=csvVerify Fix Applied:
Confirm theme version is 3.2.8 or later in WordPress admin.📡 Detection & Monitoring
Log Indicators:
- Unusual POST requests to WordPress endpoints with shortcode parameters
- Multiple failed shortcode execution attempts
Network Indicators:
- HTTP requests containing malicious shortcode payloads
- Unusual traffic patterns to theme-specific endpoints
SIEM Query:
source="wordpress.log" AND (shortcode OR do_shortcode) AND status=200