CVE-2024-54256

7.1 HIGH

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the Seerox Easy Blocks Pro WordPress plugin that allows attackers to access functionality not properly constrained by access control lists. Attackers can exploit this to perform unauthorized actions that should require higher privileges. All WordPress sites running Easy Blocks Pro version 1.0.21 or earlier are affected.

💻 Affected Systems

Products:
  • Seerox Easy Blocks Pro WordPress Plugin
Versions: n/a through 1.0.21
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects WordPress installations with the Easy Blocks Pro plugin installed and activated.

⚠️ 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

Attackers could modify plugin settings, inject malicious content, or potentially escalate privileges to compromise the entire WordPress installation.

🟠

Likely Case

Unauthorized users can access administrative functions of the plugin, potentially modifying blocks, settings, or content they shouldn't have access to.

🟢

If Mitigated

With proper network segmentation and web application firewalls, impact is limited to the WordPress instance only.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires some WordPress access but not necessarily admin privileges. Attackers need to identify vulnerable endpoints.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.0.22 or later

Vendor Advisory: https://patchstack.com/database/wordpress/plugin/easy-blocks-pro/vulnerability/wordpress-easy-blocks-pro-plugin-1-0-21-broken-access-control-vulnerability?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Go to Plugins → Installed Plugins. 3. Find Easy Blocks Pro and click 'Update Now'. 4. Verify update to version 1.0.22 or later.

🔧 Temporary Workarounds

Disable Plugin

all

Temporarily deactivate the Easy Blocks Pro plugin until patched

wp plugin deactivate easy-blocks-pro

Web Application Firewall Rule

all

Block access to vulnerable plugin endpoints

# Add WAF rule to block requests to /wp-content/plugins/easy-blocks-pro/ vulnerable endpoints

🧯 If You Can't Patch

  • Implement strict network segmentation to isolate WordPress instance
  • Deploy web application firewall with rules to monitor and block suspicious requests to plugin endpoints

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel → Plugins → Easy Blocks Pro version number

Check Version:

wp plugin get easy-blocks-pro --field=version

Verify Fix Applied:

Verify plugin version is 1.0.22 or higher in WordPress admin

📡 Detection & Monitoring

Log Indicators:

  • Unusual POST/GET requests to /wp-content/plugins/easy-blocks-pro/ endpoints from non-admin users
  • 403 errors followed by 200 success codes on plugin endpoints

Network Indicators:

  • HTTP requests to plugin admin functions from unauthorized IP addresses

SIEM Query:

source="wordpress.log" AND (uri_path="/wp-content/plugins/easy-blocks-pro/" AND (response_code=200 OR response_code=403)) AND user_role!="administrator"

🔗 References

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