CVE-2024-37423
📋 TL;DR
This path traversal vulnerability in the WordPress Newspack Blocks plugin allows attackers to delete arbitrary directories on the server. It affects WordPress sites using Newspack Blocks versions up to 3.0.8, with contributor-level or higher access being required for exploitation.
💻 Affected Systems
- WordPress Newspack Blocks plugin
⚠️ 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
Complete server compromise through deletion of critical system files, leading to service disruption, data loss, or privilege escalation.
Likely Case
Unauthorized deletion of WordPress files, plugins, or themes causing website malfunction or defacement.
If Mitigated
Limited impact if proper file permissions and web server configurations restrict write access to sensitive directories.
🎯 Exploit Status
Exploitation requires authenticated access but uses simple path traversal techniques.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 3.0.9 or later
Restart Required: No
Instructions:
1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Newspack Blocks and update to version 3.0.9 or later. 4. Verify update completes successfully.
🔧 Temporary Workarounds
Restrict Contributor Access
allTemporarily remove contributor-level access or limit contributor permissions until patching.
Web Server Directory Restrictions
linuxConfigure web server to restrict directory traversal attempts via security modules.
# For Apache: mod_security rules
# For Nginx: location block restrictions
🧯 If You Can't Patch
- Disable or remove the Newspack Blocks plugin entirely
- Implement strict file system permissions and monitor for unauthorized file deletion attempts
🔍 How to Verify
Check if Vulnerable:
Check WordPress admin panel > Plugins > Installed Plugins for Newspack Blocks version 3.0.8 or earlier.Check Version:
wp plugin list --name=newspack-blocks --field=versionVerify Fix Applied:
Confirm Newspack Blocks version is 3.0.9 or later in WordPress plugins list.📡 Detection & Monitoring
Log Indicators:
- Unusual file deletion events in WordPress or web server logs
- Path traversal patterns in request logs (../ sequences)
Network Indicators:
- HTTP requests containing directory traversal sequences to Newspack Blocks endpoints
SIEM Query:
source="wordpress.log" AND "newspack" AND ("../" OR "..\" OR "%2e%2e%2f")