CVE-2024-43924

5.3 MEDIUM

📋 TL;DR

This CVE describes a missing authorization vulnerability in the dFactory Responsive Lightbox WordPress plugin that allows attackers to access functionality not properly constrained by access controls. Attackers can exploit this to perform unauthorized actions that should require proper authentication. All WordPress sites running Responsive Lightbox plugin versions up to 2.4.7 are affected.

💻 Affected Systems

Products:
  • dFactory Responsive Lightbox WordPress Plugin
Versions: n/a through 2.4.7
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: All WordPress installations using the vulnerable plugin versions are affected regardless of configuration.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Attackers could modify gallery settings, delete images, or potentially escalate privileges to gain administrative access to the WordPress site.

🟠

Likely Case

Unauthorized users can access and modify lightbox gallery settings, potentially disrupting site functionality or defacing content.

🟢

If Mitigated

With proper access controls, only authenticated administrators could modify gallery settings, limiting impact to authorized changes only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

The vulnerability allows unauthenticated access to functionality that should require authorization, making exploitation straightforward.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2.4.8 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/responsive-lightbox/wordpress-responsive-lightbox-gallery-plugin-2-4-7-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find Responsive Lightbox plugin. 4. Click 'Update Now' if update is available. 5. Alternatively, download version 2.4.8+ from WordPress repository and manually update.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily disable the Responsive Lightbox plugin until patched

wp plugin deactivate responsive-lightbox

Restrict Access

all

Implement web application firewall rules to block unauthorized access to plugin endpoints

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable detailed logging and monitoring for unauthorized access attempts to plugin functionality

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for Responsive Lightbox version

Check Version:

wp plugin get responsive-lightbox --field=version

Verify Fix Applied:

Verify plugin version is 2.4.8 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized POST requests to /wp-admin/admin-ajax.php with action parameters related to responsive-lightbox
  • Multiple failed authentication attempts followed by successful gallery modifications

Network Indicators:

  • Unusual traffic patterns to WordPress admin-ajax endpoints from unauthenticated sources
  • HTTP requests containing 'responsive-lightbox' parameters from unauthorized IPs

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-admin/admin-ajax.php" AND http_method="POST" AND (param_action="rl_*" OR user_agent NOT CONTAINS "WordPress"))

🔗 References

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