CVE-2024-11015

9.8 CRITICAL

📋 TL;DR

The Sign In With Google WordPress plugin up to version 1.8.0 contains an authentication bypass vulnerability due to insufficient null value checks in the 'authenticate_user' function. Unauthenticated attackers can exploit this to log in as the first user who previously authenticated via Google OAuth, potentially gaining administrative access. All WordPress sites using vulnerable versions of this plugin are affected.

💻 Affected Systems

Products:
  • Sign In With Google WordPress plugin
Versions: All versions up to and including 1.8.0
Operating Systems: All operating systems running WordPress
Default Config Vulnerable: ⚠️ Yes
Notes: Requires the plugin to be installed and activated. Vulnerability exists regardless of WordPress version or configuration.

⚠️ 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 gain administrative access to WordPress, allowing complete site takeover, data theft, malware injection, and further network compromise.

🟠

Likely Case

Attackers gain access to the first Google-authenticated user account (often an admin), enabling content manipulation, plugin/themes installation, and privilege escalation.

🟢

If Mitigated

With proper monitoring and least privilege, impact is limited to the compromised user's permissions, but still represents unauthorized access.

🌐 Internet-Facing: HIGH
🏢 Internal Only: LOW

🎯 Exploit Status

Public PoC: ⚠️ Yes
Weaponized: LIKELY
Unauthenticated Exploit: ⚠️ Yes
Complexity: LOW

Exploitation requires no authentication and minimal technical skill. Public proof-of-concept exists in vulnerability references.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 1.8.1

Vendor Advisory: https://plugins.trac.wordpress.org/browser/sign-in-with-google/trunk/src/admin/class-sign-in-with-google-admin.php#L525

Restart Required: No

Instructions:

1. Log into WordPress admin panel. 2. Navigate to Plugins > Installed Plugins. 3. Find 'Sign In With Google' plugin. 4. Click 'Update Now' if available, or manually update to version 1.8.1+. 5. Verify plugin is active and functioning.

🔧 Temporary Workarounds

Disable vulnerable plugin

all

Temporarily disable the Sign In With Google plugin until patched

wp plugin deactivate sign-in-with-google

🧯 If You Can't Patch

  • Implement web application firewall (WAF) rules to block authentication bypass attempts
  • Enable detailed logging for authentication events and monitor for suspicious login patterns

🔍 How to Verify

Check if Vulnerable:

Check WordPress admin panel > Plugins > Installed Plugins for 'Sign In With Google' version 1.8.0 or lower

Check Version:

wp plugin get sign-in-with-google --field=version

Verify Fix Applied:

Confirm plugin version is 1.8.1 or higher in WordPress admin panel

📡 Detection & Monitoring

Log Indicators:

  • Unusual authentication events for first Google-authenticated user
  • Multiple failed login attempts followed by successful login from same IP
  • User login without proper OAuth flow in plugin logs

Network Indicators:

  • HTTP requests to wp-admin without proper authentication headers
  • Unusual traffic patterns to authentication endpoints

SIEM Query:

source="wordpress" AND (event="authentication" OR event="login") AND user="first_google_user" AND result="success" AND plugin="sign-in-with-google"

🔗 References

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