CVE-2024-50456

5.4 MEDIUM

📋 TL;DR

This CVE describes a Missing Authorization vulnerability in the SEOPress WordPress plugin that allows attackers to exploit incorrectly configured access control security levels. It affects all SEOPress plugin versions up to 8.1.1, potentially allowing unauthorized users to perform actions they shouldn't have permission for.

💻 Affected Systems

Products:
  • SEOPress WordPress Plugin
Versions: All versions up to and including 8.1.1
Operating Systems: Any OS running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Affects WordPress installations with SEOPress plugin installed. The vulnerability exists in the plugin's access control mechanisms.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could modify SEO settings, inject malicious content, or potentially gain administrative access to the WordPress site depending on the specific access control misconfiguration.

🟠

Likely Case

Unauthorized users could modify SEO metadata, redirects, or other plugin settings that could impact search engine rankings or user experience.

🟢

If Mitigated

With proper access controls and authentication requirements, the vulnerability would be prevented from being exploited.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

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

Exploitation requires some level of access to the WordPress site, but the vulnerability bypasses authorization checks that should prevent certain actions.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 8.1.2 or later

Vendor Advisory: https://patchstack.com/database/vulnerability/wp-seopress/wordpress-seopress-plugin-8-1-1-broken-access-control-vulnerability-2?_s_id=cve

Restart Required: No

Instructions:

1. Log into WordPress admin panel
2. Navigate to Plugins → Installed Plugins
3. Find SEOPress and click 'Update Now'
4. Alternatively, download version 8.1.2+ from WordPress.org and manually update

🔧 Temporary Workarounds

Temporary Plugin Deactivation

all

Disable the SEOPress plugin until it can be updated to a secure version

wp plugin deactivate wp-seopress

Access Restriction

linux

Restrict access to WordPress admin area using web server rules or firewall

# Example Apache .htaccess rule:
# Order deny,allow
# Deny from all
# Allow from 192.168.1.0/24

🧯 If You Can't Patch

  • Implement strict network access controls to limit who can access the WordPress admin interface
  • Enable WordPress security plugins that monitor and restrict unauthorized access attempts

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin → Plugins → Installed Plugins → SEOPress version. If version is 8.1.1 or earlier, you are vulnerable.

Check Version:

wp plugin get wp-seopress --field=version

Verify Fix Applied:

After updating, verify SEOPress version is 8.1.2 or later in WordPress admin panel.

📡 Detection & Monitoring

Log Indicators:

  • Unauthorized access attempts to SEOPress admin endpoints
  • Unexpected modifications to SEO settings or metadata

Network Indicators:

  • Unusual traffic patterns to /wp-admin/admin.php?page=seopress-* endpoints

SIEM Query:

source="wordpress" AND (uri_path="/wp-admin/admin.php" AND query="page=seopress") AND user_agent NOT IN ("admin_user_agents")

🔗 References

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