CVE-2024-0825

8.8 HIGH

📋 TL;DR

This vulnerability in the Vimeography WordPress plugin allows authenticated attackers with contributor-level access or higher to perform PHP object injection via deserialization of untrusted input. While no POP chain exists in the vulnerable plugin itself, if other plugins or themes provide a POP chain, attackers could delete files, access sensitive data, or execute arbitrary code. All WordPress sites using Vimeography plugin versions up to 2.3.2 are affected.

💻 Affected Systems

Products:
  • Vimeography: Vimeo Video Gallery WordPress Plugin
Versions: All versions up to and including 2.3.2
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires WordPress installation with Vimeography plugin and at least one user with contributor-level access.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Remote code execution leading to complete system compromise, data theft, or site defacement if a POP chain exists from other installed plugins/themes.

🟠

Likely Case

Limited impact due to lack of POP chain in the vulnerable plugin alone, but potential for data exposure or file deletion if compatible POP chains exist.

🟢

If Mitigated

Minimal impact if proper access controls limit contributor accounts and no vulnerable POP chains exist in the environment.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: LIKELY
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires authenticated access (contributor or higher) and depends on availability of POP chains from other plugins/themes.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.3.3 or later

Vendor Advisory: https://plugins.trac.wordpress.org/browser/vimeography/trunk/lib/api/galleries.php#L816

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins → Installed Plugins. 3. Find Vimeography plugin. 4. Click 'Update Now' if update available. 5. Alternatively, download version 2.3.3+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily deactivate Vimeography plugin until patched version can be installed.

wp plugin deactivate vimeography

Restrict user roles

all

Limit contributor-level accounts and review user permissions.

🧯 If You Can't Patch

  • Disable Vimeography plugin immediately
  • Implement strict access controls and monitor contributor-level user activities

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Vimeography → Version number. If version is 2.3.2 or lower, system is vulnerable.

Check Version:

wp plugin get vimeography --field=version

Verify Fix Applied:

Verify Vimeography plugin version is 2.3.3 or higher in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • POST requests to duplicate_gallery function with serialized data
  • Unusual PHP deserialization errors in logs
  • Suspicious activity from contributor-level accounts

Network Indicators:

  • HTTP POST requests containing serialized PHP objects to WordPress admin endpoints

SIEM Query:

source="wordpress.log" AND ("duplicate_gallery" OR "vimeography_duplicate_gallery_serialized")

🔗 References

📤 Share & Export