CVE-2024-2006 – This vulnerability allows authenticated WordPre... (How to Fix)

Q: What is the severity of CVE-2024-2006?

CVE-2024-2006 has a CVSS score of 8.8 (HIGH). This vulnerability allows authenticated WordPress users with contributor-level access or higher to perform PHP object injection through the Post Grid, Slider & Carousel Ultimate plugin. If a POP chain exists via another plugin or theme, attackers could delete files, steal data, or execute arbitrary code. All WordPress sites using vulnerable plugin versions are affected.

📋 TL;DR

This vulnerability allows authenticated WordPress users with contributor-level access or higher to perform PHP object injection through the Post Grid, Slider & Carousel Ultimate plugin. If a POP chain exists via another plugin or theme, attackers could delete files, steal data, or execute arbitrary code. All WordPress sites using vulnerable plugin versions are affected.

💻 Affected Systems

Products:

Post Grid, Slider & Carousel Ultimate – with Shortcode, Gutenberg Block & Elementor Widget WordPress plugin

Versions: All versions up to and including 1.6.7

Operating Systems: All operating systems running WordPress

Default Config Vulnerable: ⚠️ Yes

Notes: Requires contributor-level WordPress user access or higher. Impact depends on presence of POP chains from other plugins/themes.

📦 What is this software?

Post Grid\, Slider \& Carousel Ultimate by Wpwax

View all CVEs affecting Post Grid\, Slider \& Carousel Ultimate →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete site compromise, data theft, and server takeover if a suitable POP chain exists.

🟠

Likely Case

Arbitrary file deletion or sensitive data exposure through available POP chains in common WordPress plugins/themes.

🟢

If Mitigated

Limited impact if no POP chains exist, though object injection still creates security risks.

🌐 Internet-Facing: HIGH

🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: LIKELY

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires authenticated access and finding suitable POP chains. Technical details are public but no full exploit is published.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.6.8

Vendor Advisory: https://plugins.trac.wordpress.org/changeset?old_path=/post-grid-carousel-ultimate/tags/1.6.7&old=3045923&new_path=/post-grid-carousel-ultimate/tags/1.6.8&new=3045923

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find 'Post Grid, Slider & Carousel Ultimate'. 4. Click 'Update Now' if available, or delete and reinstall from WordPress repository. 5. Verify version is 1.6.8 or higher.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate the plugin until patched

wp plugin deactivate post-grid-carousel-ultimate

Restrict user roles

all

Limit contributor and higher roles to trusted users only

🧯 If You Can't Patch

Disable the Post Grid, Slider & Carousel Ultimate plugin immediately
Implement strict access controls and monitor for suspicious activity from contributor+ users

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins for 'Post Grid, Slider & Carousel Ultimate' version 1.6.7 or lower

Check Version:

wp plugin get post-grid-carousel-ultimate --field=version

Verify Fix Applied:

Confirm plugin version is 1.6.8 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

Unusual POST requests to wp-admin/admin-ajax.php with 'action' parameter containing 'outpost_shortcode_metabox_markup'
PHP deserialization errors in web server logs
Unexpected file deletions or modifications by contributor-level users

Network Indicators:

HTTP requests with serialized PHP objects in parameters

SIEM Query:

source="wordpress.log" AND "outpost_shortcode_metabox_markup" AND ("unserialize" OR "O:")

📊 Metadata

CVE ID: CVE-2024-2006

CVSS v3 Score: 8.8 (HIGH)

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-502

Published: March 13, 2024

Last Updated: March 13, 2025

🔗 References

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