CVE-2024-29800

8.0 HIGH

📋 TL;DR

This vulnerability allows attackers to execute arbitrary code on WordPress sites using the Timber plugin by exploiting insecure deserialization of untrusted data. It affects all WordPress sites running Timber plugin versions up to 1.23.0. Successful exploitation could lead to complete site compromise.

💻 Affected Systems

Products:
  • WordPress Timber Plugin
Versions: All versions up to and including 1.23.0
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects all WordPress installations with Timber plugin enabled, regardless of WordPress version or configuration.

⚠️ 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.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete server compromise, data theft, malware installation, and site defacement.

🟠

Likely Case

Unauthenticated attackers gain administrative access to WordPress, allowing content manipulation, plugin/themes installation, and backdoor persistence.

🟢

If Mitigated

Limited impact if proper input validation and output encoding are implemented, though deserialization vulnerabilities remain dangerous.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Deserialization vulnerabilities are frequently weaponized due to their potential for remote code execution.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.23.1 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/timber-library/wordpress-timber-plugin-1-23-0-deserialization-of-untrusted-data-vulnerability

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Timber plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 1.23.1+ from WordPress.org and manually update.

🔧 Temporary Workarounds

Disable Timber Plugin

all

Temporarily disable the Timber plugin until patching is possible

wp plugin deactivate timber-library

Restrict Plugin Access

all

Use web application firewall to block access to Timber plugin endpoints

🧯 If You Can't Patch

  • Implement strict input validation and sanitization for all user-supplied data
  • Deploy web application firewall with rules specifically targeting deserialization attacks

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Timber version

Check Version:

wp plugin get timber-library --field=version

Verify Fix Applied:

Verify Timber plugin version is 1.23.1 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST requests to Timber endpoints
  • PHP deserialization errors in logs
  • Unexpected plugin file modifications

Network Indicators:

  • HTTP requests containing serialized PHP objects
  • Traffic to known exploit patterns for CVE-2024-29800

SIEM Query:

source="wordpress.log" AND ("timber" AND "deserialization" OR "untrusted data")

🔗 References

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